Category: UPnP AV / DLNA media-server hardware

Introduction

I am reviewing the Nokia N85 3G Multimedia Phone, which is part of Nokia’s high-end “N-series” multimedia phones. It has been positioned as a second-tier model in their lineup and is one that can be easily missed in the crowded multipurpose mobile phone market, especially where this market is dominated by the Apple iPhone for personal use and the Blackberry phones for business use.

Software availability

This phone is part of the Symbian S60 Version 3 platform which has a wide availability of software from different places. This means that additional functions can be added “off the Web” by visiting Handango, software providers’ Web sites and S60-themed Web sites as well as the Ovi application store. This puts it as a decent alternative to the Apple iTunes App Store model that is being implemented by the “King Of Cool” with the iPhone.

As a multimedia phone terminal

The N85's high-contrast OLED display

The display is based on OLED technology rather than the usual LCD technology which makes it easier to read in all light. The display is very bright and can be seen at extreme angles. Infact, I consider this display the “vacuum-fluorescent display for battery-operated devices” because it has the same brightness and consistency as the vacuum-fluorescent displays used on most home-installed consumer-electronics devices, especially Panasonic or Sony equipment. A disadvantage that this display may have is that this may lead to some pictures, especially some photographs, appearing too saturated and with a bit too much contrast but it may be how the OLED display reproduces the pictures. It may be a boon with text or diagrams such as the Ovi Maps.

The phone’s battery life is very good even when used as a music player as well as a phone. If you use 3G or WiFi data connectivity or the integrated navigation functionality for a significant amount of time, you can compromise the battery life. You can get around this problem while getting the most out of the phone while you are out and about but cannot readily use the supplied charger by investing in an external battery pack such as one of those “AA-battery”-powered mobile phone chargers. The phone’s MicroUSB socket is its power socket, which means that USB=based power devices used along with a micro-USB flylead can become the phone’s external power supply. The only problem with this is that some USB hubs may not be logically seen by the phone as a charger.

The phone as a GPS unit

The phone has integrated GPS but I am using this function with Ovi-based Maps 3.0 with City Guide subscription. For people who do a lot of walking, the subscription is very good value. One thing that I would like to see in the maps data is public paths for use by low-speed traffic like pedestrians, cyclists or horseback riders; but this is an issue with Navteq and the data they provide to Nokia. The GPS function can be used by other S60 3rd Edition location-driven applications like Nokia’s Sport Tracker GPS pedometer / workout diary or Google’s S60 siftware.

The phone as a Walkman

This phone beats the iPhone when it comes to personal-stereo functionality. This is demonstrable in the FM radio and the integrated music player, especially in how you can add music to the phone.

The phone has an integrated RDS FM radio which works only with wired headsets because the headset’s wire also is the radio’s aerial. There are a few discrepancies when it comes to working with RDS-enabled FM stations. If you preset an RDS radio station, the callsign details that are supplied through RDS aren’t used as a default station reference name. Instead, you have to manually copy the station’s name in to the station’s preset details. The phone doesn’t work with the so-called “dynamic RDS” features like TA/TP/EON traffic-information priority – a feature which can be a boon to public-transport users; PTY program-type functionality (including news priority) or RadioText dynamic text display. It does work with Visual Radio, which is an interactive radio service with 3G or WiFi as data backhaul.

The built-in music player is definitely flexible when it comes to handling music content because it works from music held on the microSDHC cards up to 16Gb / card in capacity. These can be exchanged at will in a similar manner to the classic cassette or MiniDisc formats. Similarly, you can enlarge the storage capacity by upgrading the memory card to a higher capacity. It is compatible with the SlotMusic “musicassette” idea that Sandisk put forward; and the MicroSDHC cards can be loaded with music through a “drag-drop” method via the file system and Nokia PC Suite or directly on to the microSDHC card in an SDHC card reader with the use of an SD card adaptor; or the phone can be synced through Nokia PC Suite or Windows Media Player.

As well, you can download content from a DLNA music server that you are connected to via the WiFi network. This yields a lot more flexibility than the Apple iPod / iPhone system when it comes to adding newer music to your portable collection  As far as codecs are concerned, the phone works with MP3, WMA and AAC codecs and can work with WMA up to 192kbps and MP3 up to 320kbps. The music player is operated in a manner similar to most MP3 players and if you make or take a call, the music pauses and resumes from where it left off. There is even the nice touch of the music fading up gracefully when you finish the call.

The integrated camera

The integrated camera is capable of high-resolution pictures and works well as an auxiliary camera if your main digital camera is out of action. It also works very well for video photography and will use the available memory on the microSD card for the footage rather a particular time limit.

One main problem with it is that if you intend to take pictures to send as MMS messages, it will prefer to send the high-resolution pictures which may not work with most mobile phones. To send an MMS, you would have to set the camera to work at a lower resolution before you take the picture. The picture you save would be a low-resolution picture. A point of improvement that could exist would be to have downscaling for MMS images when an image is sent as an MMS message.This is where a downscaled copy of the image is sent out as an MMS image.

Other than that, pictures and video that you take with the built-in camera can be transferred or printed out using PTP, Picthridge or Bluetooth or a PC can import pictures using Nokia PC Suite and any of the picture import functions that are part of Windows.

There is also a low-resolution camera on the front of the phone which comes in handy if you make a 3G videocall, but you can select to use the main camera during the videocall if you intend to show the other caller something rather than yourself.

Connectivity

As far as regular mobile-phone connectivity goes, this phone offers whatever is expected from a high-end mobile phone or smartphone.

The phone has a MicroUSB data and power socket and a 3.5” 4-conductor jack for headphones / AV lineout and headset / audio adaptor use. I use the phone with a Nokia-supplied headset audio adaptor with built-in microphone that is connected to a set of premium headphones so as to gain good-quality sound. The phone can connect to cassette adaptors for use with car cassette players or classic ghetto blasters; either directly or through an audio adaptor.

The main problem I have had with the audio adaptors is their flimsy tie-clips anchored to these adaptors that break under typical use. If this happens to you, I would suggest using either a metal “bobby-pin” or tie-clip; or a regular plastic clothes-peg from the laundry, attached to the audio adaptor with a rubber band. The only problem is that it may look a bit ugly especially in conjunction with formal wear or good headphones; and, for women, may be uncomfortable against the cleavage. To do this, wrap the rubber band around the audio adaptor making sure it isn’t pressing any of the buttons. Then open the clothes-peg, tie-clip or “bobby-pin” and pass one of the jaws of the clip through the rubber band. You then are able to clip the audio adaptor to your collar, lapel or tie with the tie clip, clothes peg or “bobby pin”.

The phone has a built-in PLL-controlled FM transmitter which you can use alongside an FM radio for music playback. If it was able to use this FM-based link for handsfree calling, I wouldn’t use that functionality at all because of having to set up the radio to handle the call every time a call comes in – one step too many.

The Bluetooth functionality is equally comprehensive in that is supports the Headset and Handsfree profiles for handsfree calling; A2DP / AVRCP audio playback profiles for music streaming functionality; and SIM Card Profile and Phone Book Profile for the increasing number of advanced in-car handsfree devices available with newer premium vehicles or on the aftermarket. This certainly means that the phone can partner with all of the good Bluetooth headsets and helmets as well as all of the good in-car handsfree setups.

Existence in the small network

WiFi Networks

The phone’s main method of connection to a small home or business network is through the built-in WiFi transceiver.

This transceiver works with 802.11g WPA networks that work purely to the WPA or WPA2 modes as well as to insecure WEP networks. This avoids routers or access points that are set up for WEP/WPA compatibility modes. For business and other high-security networks, the phone can work with most EAP-based enterprise security network setups; including SIM-based security. The phone can be programmed to work with wireless networks that have their SSID hidden, with use of a “hidden” option when you create an access point. The WiFi radio is very sensitive, which can come in handy whenever you use wireless hotspots.

The main gap the the phone has concerning WiFi-network connectivity is the lack of ability to support the WPS easy-enrolment setup that is becoming the norm for currently-issued wireless routers.

UPnP / DLNA Functionality

The phone works “out of the box” as a media player to the phone’s display and speakers or as a UPnP AV Control Point for pushing content held locally or on anther DLNA media server to another UPnP AV / DLNA Media Renderer device. It can also share content held on its memory card to a DLNA Media Network. Playlist management – can it push the contents of a container to a device?

Mail terminal

The built-in Symbian mail client supports IMAP4 and POP3/SMTP e-mail systems and uses a similar auto-setup routine to Windows Live Mail, where you just supply your fully-qualified e-mail address and password and the phone just works it out. The client is a similar standard to what is integrated in most smartphones but due to 12-key data entry, may be best used for reading e-mail and sending short replies or notes.

Web browsing

The web-browsing experience is similar to most other smartphones and is limited by the small screen. It can be viewed horizontally by selecting a mode to “view horizontal”. Password entry for social-networking and similar pages can be difficult due to the 12-key text-entry method primarily used in this class of phone.

Internet Radio

There is an integrated Internet Radio receiver function that can work with WiFi networks or 3G networks. If you want to use this function with a 3G network, it will need to work on an “all-you-can-eat” data plan if you want to do a lot of Internet-radio listening. The station directory is similar to that offered by Reciva or vTuner; which means having the stations sorted by country or genre. The phone can also “pipe” the Internet radio sound through the Bluetooth A2DP audio stream which allows you to play Internet radio broadcasts through Bluetooth speakers and similar audio accessories.

Conclusion, including the phone’s “cool factor”

This phone will appeal to the mature users who want a fully-functional yet flexible multimedia mobile phone but don’t intend to do a lot of text entry on it. As well, the phone “sets the cat amongst the pigeons” with the OLED display which is different from the LCD-display norm, thus can appeal to those who don’t have good eyesight.

What Nokia needs to do is to offer phones equipped with this OLED display and Symbian S60 to cut in to established smartphone markets like the QWERTY-keypad business phone (whether Blackberry-style or lengthways) or the touchscreen phone.

I have bought this phone on a published 24-month Telstra 3G “cap” contract under the regular terms and conditions for all customers who sign up to the contract. Therefore I am not writing this out of fear or favour.

My comments on the Thecus “midget” NAS server

I had posted comments on this blog in response to a “SmallNetBuilder” article regarding this “midget” NAS device and its relevance to the small network.

The main issue that I touched on is its small size and the use of the low-power 2.5” hard disk as part of a network-attached storage device. I had mentioned about the key advantages of this application being the small size and reduced power consumption and quieter operation that this class of device will offer.

A point of innovation that I had raised for further development of this device would be to have the device work from an automotive or marine power supply, thus supporting “office on wheels”, DLNA in the car and mobile video surveillance applications.

Actual Press Release from Thecus follows

Thecus® Unveils the N0204 miniNAS Device

03/30/2009 – Big things are happening in the world of NAS devices. Today, Thecus® is proud to introduce the N0204 miniNAS device – the world’s smallest fully-featured NAS device.

Measuring a tiny 132 x 88 x 63 mm exterior, one could easily mistake the N0204 as a regular external hard drive. But look closer and you will see a very capable two-bay NAS device that fits right in the palm of your hand. The N0204 houses two 2.5” SATA hard disks, providing up to 1TB of storage. You can manage this storage with your choice of RAID 0, 1, and JBOD, making the N0204 the most robust pocketable storage device in existence. And because its drive bays are hot-swappable and feature auto-rebuild, you can change a hard disk without powering down the unit. The N0204 even comes with Thecus®’ Nsync for remote replication as well as the Thecus® Backup Utility for total data security. With huge storage, RAID functionality, and advanced data safeguards packed into a tiny device, the N0204 miniNAS is in a class all its own.

Tiny but mighty, the N0204 comes with many of the features and functionality possessed by its much larger cousins. For starters, the N0204 can function as a complete media hub with its built-in iTunes server, photo web server, and media server. With the built-in media server, you can enjoy your videos, pictures, and music with the N0204 by using any DLNA compliant media players. Plug in a USB web cam, and the N0204 turns into the world’s tiniest home surveillance server, allowing you to preview, capture and schedule image snapshots up to 640 x 480. Add to that support for both Windows and MAC OS operating systems and a whole new user friendly Windows Utility to easily set up and link the N0204 with your PC, and you’ve got some serious storage that you can whip out of your pocket and plug into virtually any network.

The N0204 miniNAS is a marvel of engineering. With advanced energy-saving capabilities, the N0204 only uses between 25~30% of the power compared to traditional two-bay NAS devices. You can even schedule power on/off for better power management. The N0204 also features whisper-quiet cooling, which means low temperatures and even lower noise during daily operation. A convenient USB 2.0 port in the front and the one-touch copy allow you to copy the contents of a USB storage device to the N0204 with a single button press. You can also copy data from the N0204 to any USB disk for data exchange. The N0204 supports USB printers, external hard disks, USB web cam, and even works with USB WLAN adaptors, allowing you to give this tiny NAS device wireless capability.

A complete NAS device in a form factor smaller than a paperback book, the N0204 miniNAS proves that great things do indeed come in tiny packages.

“When we tell people what the N0204 miniNAS can do, the most common reaction is disbelief followed by awe,” notes Thecus General Manager Florence Shih.  “We’ve essentially created a fully-functional NAS device in a package that you can take anywhere. With the N0204, you can enjoy the power and convenience of NAS storage anywhere life takes you.”

For more information on the N0204, check out:
http://www.thecus.com/products_over.php?cid=12&pid=137&set_language=english

SmallNetBuilder – Small Network Help – Thecus Adds Dual-Bay Hot-Swap Mini 2.5" SATA NAS

My comments on this “midget” NAS

The 2.5” laptop hard disk as part of a highly-portable dual-drive network-attached storage has matured as a form factor with Thecus competing with Buffalo Technology in this product class.

The reason that these network-attached storage devices, which would be nearly the same size as a regular single-drive unit that works with a 3.5” hard disk is that they can offer what the what the regular single 3.5” hard disk units offer but with more advantages like reduced power consumption and operating noise as well as the advantages of being able to work as a RAID device.

The Thecus NAS has improved on the Buffalo design by offering BitTorrent support and the ability to work with a USB webcam as a time-lapse video recorder / network camera server as well as the usual file storage and DLNA media-server functionality.

As more companies sell these small dual-disk NAS boxes that use laptop hard disks, this could open the floodgates for network data storage applications where size or reduced power and operating-noise matters. It doesn’t matter whether you are dealing with

Point of innovation

An opportunity for innovation that can exist with this class of NAS devices is for them to work on an automotive or marine power supply environment. This is a power supply which runs nominally at 12 or 24 volts DC but would typically have varying-voltage conditions due to situations encountered in these situations like whenever the engine is started. These units would also need to shut down if the power is below a critical level for vehicle use so the engine can be started. As well, it may be desirable to support “ignition sense” so the unit can go in to different operating modes depending on what position the vehicle’s ignition switch was set to.

If this is achieved, these NAS devices could provide data storage to an in-vehicle LAN (which may have a wireless wide-area-network router at the edge) in a cost-effective manner. It could then lead to DLNA-based media handling on the road and improved network-based local data storage for “office-on-wheels” applications. With the Thecus NAS mentioned in the article having USB webcam support, it could allow for the use of a cost-effective USB webcam-based “black box” video-surveillance system for mobile applications like, for example, buses operated by community organisations and schools; or delivery vehicles.

At least there are signs of progress towards the small-form-factor NAS boxes becoming a reality and increasing the application space for these devices.

Kitchen / laundry appliances, building control and security

Unlike the Internationaler Funkaustellung 2008 in Berlin, this show hasn’t headed towards exhibiting kitchen / laundry appliances and building control / security devices. But a show like this could head down that direction under various mandates like the “green” energy-efficiency mandate and the “smart home” mandate.

The main reason that this has been put off is because of the financial downturn in the US where many of these companies who rely primarily on the “new building” market are simply not selling many of these devices, therefore cannot afford to spend on this kind of activity.

Windows 7 Goes Beta

This has meant a major milestone for Microsoft in having Windows 7 legitimately enter the public beta stage. It has allowed the blogosphere to talk about improvements to the way Windows will be working under this operating system.

One major improvement will be the Device Stage where there will be an integrated user interface for all of the peripherals that the computer benefits from. It doesn’t matter whether the device is connected by a USB or other peripheral-connect cable or is accessed over a wireless peripheral link or the IP network the computer is a member of. This interface will provide access to the standard tasks for managing the device as well as any manufacturer-specified tasks for that device.

Another highlighted connectivity improvement is the Windows 7 “Home Group” which simplifies how a home network is set up and represented. This also includes any “non-computer devices” like network media players, network-attached storage units, games consoles and IP cameras.

Large colour bit-map display as a preferred user-interface display for “fixed” consumer electronics

Previously, we have seen “fixed” consumer-electronics devices like stereo / home-theatre equipment, computer network equipment and similar hardware having either a vacuum fluorescent display, monochrome liquid-crystal display, monochrome LED display or lately an OEL display as their user-interface display. Such a display would take up a small area of the device’s front panel and typically show textual information. If they show graphical information, it would be a low-resolution display which represents a “current-function” icon or a bar-graph representing a quantity like sound level.

Now manufacturers are supplying some of their devices with high-resolution colour LCD or OEL displays. Examples of this include the D-Link DIR-685 Wireless-N router / electronic photo frame / UPnP Media Server; Linksys’s Network Home Audio products and Linksys’s new media-focused DLNA NAS boxes. This has been because of high-resolution colour LCD modules of sizes up to 17 inches becoming more cost-effective.

This has allowed the “fixed ”consumer-electronics devices to have a user interface that is very similar to that provided by the coolest portable devices. It has also allowed manufacturers to look towards equipping their devices with touchscreens and iPod-style “spinwheels”. The user-interface menus on these devices are starting to have the same kind of experience that is accepted on the latest set-top boxes or portable media players.

It will certainly make those monochrome user-interface displays look so tired and “yesterday” as far as product user-interface design is concerned.

SDXC – the next-generation high-capacity SD card

The standard SDXC card can hold up to 2Tb, and being part of the SD Card lineup, be available in the three physical card sizes available for these cards. This iteration of the SD card would primarily appeal to portable devices like laptops, DSLRs, HD camcorders, etc. Could the SD card be the replacement for the hard disk especially in small portable computers like netbooks or as a large firmware storage for electronic devices?

The only limitation about this technology would be that SDXC cards wouldn’t be able to be read in the existing SD or SDHC devices.

LCD TVs – 7mm thick, Plasma TVs – 8.8mm thick

http://www.telegraph.co.uk/scienceandtechnology/technology/4159682/Worlds-thinnest-television-unveiled.html

Thinner flat-panel displays based on the common large-screen technologies are appearing. This will allow for improved consolidation for the display unit, thus allowing also for lighter sets and reduced “bill-of-materials” costs for this class of electronics. Manufacturers can allocate more room for extra functionality and there will be less of the overheating that occurs in these sets because of improved airflow over the chassis. This also leads to improvements in operational efficiency thus reducing the accusation about the large-screen flat-panel TVs being as inefficient as a 4-wheel-drive “Toorak tractor”.

MoCA being launched to the consumer

Mostly this will manifest in the form of “Ethernet-Coax” bridges in a similar form to the common “homeplugs” which are simply “powerline-Ethernet” bridges. Read more about MoCA in this article in this blog.

US-market TVs equipped with Netflix and similar service

In the US, Netflix and similar video-on-demand companies are “buttering up” to the “brown-goods” companies to integrate support for their service in their TV sets and similar devices. Similarly, some TV manufacturers are moving towards providing mid-range and premium equipment with built-in large-screen Internet viewing functionality. This will typically require the TVs, PVRs or set-tops to have Ethernet ports or WiFi connectivity.

If a customer wants to use this kind of feature, they should use the wired means (Ethernet, MoCA, HomePlug) rather than WiFi because this will provide increased reliability with these services.

An ideal feature for these sets would be to have DLNA / UPnP AV functionality with “Play-to” support. This can allow one to view or listen to their own media library whether it is held on their own PC or network-attached storage unit. It is more so because a lot of the NAS units pitched at the home market are being equipped with DLNA server functionality.

Linksys DLNA-compliant music systems and NAS boxes

1 music system with CD player, 1 network music system and 1 network audio receiver, all able to be controlled by a Linksys WiFi remote controller. Linksys is also selling “media-optimised” DLNA-compliant NAS boxes, one of which has a memory card slot for “dump to NAS” ability and a colour LCD display.

The “dump to NAS” memory card slot featured on the mid-range and deluxe units could come in handy with digital-camera memory cards and SlotMusic cards by making the content that exists on these cards available to the home network at all times.

Premiere of USB 3.0

The first few devices will be out, mainly in the form of external hard disks. Could this be an alternative to eSATA as an external hard-disk connection? Could it work as a “fat pipe” for a WiFi-N network adaptor.

The situation will be the same as what has happened with the launch of USB 2.0 where it will be available in a “retrofit” form for existing computers. This option will then end up being available as part of computer hardware introduce from next year onwards.

Premiere of eCoupled

Fulton Innovation had officially promoted the eCoupled inductive power-coupling system, providing it as an alternative to corded power for portable devices. They had set up a proving ground at the CES for wirelessly charging mobile phones, cordless power tools and remote controllers.

This technology will benefit portable entertainment and IT devices by achieving a standard wire-free power source for these devices. They also had proven the idea of “parking” a remote control on a set-top box or TV set so it can be charged quickly. It could allow for the TV or set-top box to perform required tasks like shut-down whenever the remote is parked on or removed from the unit.

Why set up a PC-less networked AV setup

A PC-less networked AV setup doesn’t need a particular computer to be present and running to provide AV media to DLNA client devices.

The media is provisioned by a box that is designed for providing AV media to client devices 24/7. This avoids situations where the media is not available due to the PC crashing or being infested with malware; both events that can be very common occurrences with most home computers. There is no need to worry about a PC which is being used for playing games or doing other system-intensive activities limiting media availability. Similarly, these setups use less energy than a PC working as a media server.

This setup also suits today’s laptop-based computing environment where laptop computers are more likely to be moved from place to place. It also suits environments like holiday houses where there is no real use in keeping a desktop computer on the premises but there is the desire to have occasional Internet access at such locations.

As well, this kind of setup appeals to computer-shy people who may want to benefit from digitally-hosted media. This is because there is no need to have a noisy ugly computer in the house for this kind of activity to occur.

Another bonus is that when you add more media client devices to the network, a dedicated media server can handle the increased demand more capably. Contrast this with a PC where the odds of failing when serving more devices can increase rapidly.

What kinds of PC-less media server exist?

Dedicated DLNA music server (Philips Streamium WACS-7000, Sony GigaJuke  NAS-S55HDE, etc)

This unit is typically in the form of a hi-fi system or component that is part of such a system. It has a single hard disk that is primarily for storing media, typically music files and have a network interface, either in the Ethernet or 802.11g wireless form.

Such units will have a built-in CD drive and can “rip” audio tracks from CDs loaded in that drive. They will have access to a metadata service like Gracenote so that the tracks are properly indexed by song title, artist (both album and contributing), genre and album title. As well, they could record audio to the hard drive from a device connected to the server’s line-level input or, where applicable, from a built-in radio tuner. This is in a similar manner to recording music to tapes from the radio using that good old cassette deck.

A lot of these systems expose features and functions that only work best with selected client equipment sold by the server’s manufacturer. They may have limitations concerning transferring audio files to and from the unit’s hard disk, which may limit backup or secondary-storage opportunities. Usually they require a computer to run a special utility in order to transfer music files to or from the unit.

Standalone NAS (network-attached storage) box

These devices are simply a dedicated file-storage device that is connected to the home network and handles files according to standard network-based file-handling protocols. They often provide backup file storage and secondary file storage for computers on the network as well as media-server functionality.  Some users may use the hard disks in these units as a “holding bay” for their computer’s hard-disk contents while they are upsizing that computer’s hard disk.

These boxes will typically come either as a single-disk unit which is the size of a book or as a multi-disk unit that is typically the size of a toaster or breadmaker. These units  either uses the hard disks as a huge storage volume or sets aside some of the disks as a “shadow store” for the data should any of the disks fail. This latter technique, which also provides higher data throughput is known as RAID which stands for Redundant Array of Independent Disks.

They are available as a unit fitted out with the necessary hard disks to the capacity you pay for or as an enclosure where you install hard disks that you buy separately. Earlier versions of these enclosures required the user to mess around with a screwdriver and end up losing screws in the assembly process, but the newer units just require the user to slide in or “clip in” the hard disks.

This class of device includes “headless” small-scale server platforms like Windows Home Server and some Linux distributions which can be expanded by the user to perform different functions. They may include this kind of software being loaded on an otherwise-redundant PC that is being repurposed as a small-form file server.

This device will be the way to go eventually because of its ability to provide a flexible media-sharing solution for most small networks.

"Ripping" NAS units

There are a class of NAS boxes that are just like a regular NAS box, having the same number of hard disks as these devices and having the same capacity and functionality as these boxes. But these units, such as the RipFactory RipServer, have a built-in optical disk drive and software which “rips” CDs loaded in to the unit’s optical drive, in a similar manner to a dedicated DLNA music server. They will use a music metadata service like Gracenote to index the tracks that are ripped from the CDs loaded in the unit’s optical drive. These units would be considered as a “bridge” between the dedicated DLNA music server and a general-purpose NAS box.

USB hard disk connected to a DLNA-compliant USB file server

Another common method is to use a USB network file server device that is connected to a USB external hard disk. The device can typically be part of another network device like a router or just become a standalone box. These units, again, handle files according to the standard network-based file-transfer protocols.

They work best with one self-powered USB hard disk because most of these server devices usually run on a low-output power supply that typically powers the electronics within. Most of these units also don’t have the logic to properly handle a USB hub or multiple USB hard disks. If you are using a small hard disk that doesn’t have its own power supply, you may need to connect it via a self-powered USB hub. Similarly, you may find that using a self-powered USB hub can assure reliable service with any of the USB file servers that can support USB hubs,

These setups are useful for a temporary media-sharing arrangement where you are providing media to one or two devices or as an auxiliary media server for other media that isn’t always used.

Storing your media on these devices

If you use a dedicated NAS unit without a built-in optical drive, you will need to make sure that you have SMB (Windows, MacOS X, Linux) or NFS (Linux) read/write access to the media share on that NAS unit. As well, make sure that there is a desktop shortcut, mapped drive letter or other mount point to that share on your computer(s) that you are preparing the media on.

Prepare your media as you normally would, with it ending up in your computer’s media directories. Then copy the media directories to the NAS media share using the standard practices that you use for copying files and directories. You may need to set up a “sync” routine to automatically copy new media to the media share so you can be sure that the new media is available on the network.

Avoid the temptation to "rip" a CD directly to the network share because there is the increased likelihood of errors and slow performance due to multiple points of failure existing between the CD and the NAS’s hard disk, being the optical drive, the ripping and encoding processes and the network transfer process.

Increasing and evolving the DLNA networked media system

One media Server, work towards a NAS unit

This is more analogous to a business’s file server where the IT department want to make sure that all company data is seen as one collection to back up and manage and is at one location. This may appeal to you if you want to have only one primary storage point for your media.

The only limitation about this is that if you need to “do anything” with the NAS unit like upsize it or replace a failed hard disk, you will have to have the media library out of action.

Two or more Media Servers serving different content

You may want to have the media on two or more media servers rather than one media server. This may appeal to a household which has young adults or adolescent children living in it. In this situation, they may want to keep their media on an NAS that they have responsibility for and can take with them when they move on. This avoids you having your media server being “clogged up” with their media which you will less likely want to touch whether they are with you or when they have left your place.

Similarly, you may have media to do with your personal activity as well as media to do with your business or community-engagement activity. Here, you can run a separate media server which houses your business media and this one can be managed under business standards and be financially underwritten by your business. This includes Web developers who run a NAS box as a “Web-page workbench” and want to view primary pictures for their Web page on a DLNA media client attached to the big-screen TV.

Here, you create the different media servers but you make sure they have different names so that your DLNA client devices can differentiate between the server devices. You may use different types of server such as a USB hard disk connected to a DLNA-capable USB file server for a small project or a business-class NAS unit for your business data.

An increasing number of NAS devices pitched at the domestic market are starting to support the ability to aggregate multiple DLNA media libraries in to one large media library. This allows the user to point their media client device at one reference point for all the media that exists on the one home network.

Media Servers in different geographical locations

There may be the possibility of running another DLNA-based media network in another geographic location like a business premises or another house.

The main issue about this is keeping both locations in sync with the desired content. You may have to use an Internet-based sync utility which is supported by your media server to synchronise content between locations.

On the other hand, you could set up an IP-based NAS-NAS backup set for incremental or differential (only files that are new or have changed) backup, but the backup jobs could still be large if any metadata is changed.

You would have to make sure that both NAS units are accessible from the Internet. This may involve establishment of a “dynamic DNS” setup through the use of “DynDNS” or similar utilities; or having each location have a fixed IP address. Then there is the issue of setting up a port-forwarding rule in your router, which may be easy if your NAS units implements UPnP-based port forwarding and you are using a UPnP-compliant router in each location. On the other hand, you may have to visit the router’s Web page to set up the port-forward rules.

This situation hasn’t been made easy because typically the concept of using multiple NAS boxes for applications like multi-location file storage hasn’t been defined as a key application.

Conclusion

Once you have moved towards the PC-less DLNA-based media network, you will thank yourself that you have headed down that path. You won’t need to keep a noisy computer on all the time just to enjoy your music over the network.

Network-Attached Storage Should Feature File Allocation, Searching, and Media Sharing in Addition to Increased Capacity | eHomeUpgrade

My comments on this topic

We are increasingly using our computers to build digital media libraries, whether through taking digital pictures and movies with our digital cameras and digital handycams, copying media that exists in packaged form to the hard disks of our computers or downloading material from various Web sites.
This is definitely leading to us running out of hard-disk space on our computers. The typical home network will end up with an aggregate collection media files in the many gigabytes or even terabytes across all of the machines.
The network-attached storage systems that are on the market are being sold primarily on capacity, the disk arrangement being used and, in the case of multi-disk units, what RAID level they support.
When I check out any NAS box, even units that are for small-business use, I look for units that use UPnP AV MediaServer / DLNA functionality. This function allows them to be effective in searching media files and presenting them to digital media playback devices that conform to UPnP AV / DLNA specifications.  An improvement that I would like to see for NAS-based UPnP media front-ends would be to support all “in-file” metadata systems like ID3, and EXIF (including Windwos Live Photo Gallery’s tags).
If you have a network with many Apple-controlled front-ends, the Apple-controlled front-ends will be primarily running iTunes and an iTunes / “daap”-compatible media front end can provide access to the media files from iTunes.
Software manufacturers could work on ways to differentiate media-handling abilities amongst the network-attached storage devices that they offer for home and small-business use.
A feature that could definitely be an improvement on this could be software that can aggregate media libraries from different storage locations and present it as a “premises-wide” media directory. This can also include automatic synchronisation of new media between computers and network-attached storage units so that media commonly used is always available at all times.
Other features could include Web-based directories so one can see what is on the NAS using a Web browser for example. This could be a useful implementation of Web 2.0 techniques like AJAX for example.