I have a 1000GB Maxtor Shared Storage 2. Absolutely brilliant product. I upgraded the firmware to 3.1.28 recently. The DLNA 'Video' streaming functionality is now not working correctly with my Sony PS3 (firmware 2.10). This is strange given the update was suppose to officially support and certify DLNA / uPnP.
The PS3 can see the Maxtor Shared Storage 2 Server; it's content (My Music, My Pictures and My Video) in their respective folders, but for some reason the PS3 cannot stream or play the Video content hosted on the storage drive. The Sony PS3 reports the file as 'unsupported file', which is strange, because before it worked. Fortunately, there are no issues with streaming JPEG pictures and MP3, WMA and AAC music files.
The type of video files I am attempting to stream from the Maxtor Shared Storage 2 to the Sony PS3 are MPEG4, DivX and H.264 AVC files ranging from 300 MB to 1GB.
I have performed my own tests to rule out the PS3 being an issue. 1.) The same files play successfully if copied onto the PS3 via USB. 2.) I can successfully stream & play video files from my Sony DLNA certified notebook attached to the same network running Microsoft Vista Ultimate.
I have refreshed, rebuilt & rebooted the MSS 2 media server. The network is also hardwired (cat 5e), so that rules out network instability issues.
Can you please explain why this may be happening? I have scanned the Internet forums and it appears a number of people are having the same issue. Installing Twonky media server apparently resolves the issue, but then I loose all the good Maxtor/Segate automatic backup stuff, etc. Can you confirm what version of DLNA is supported on the Maxtor Shared Storage II? Is it possible to downgrade the version to 3.1.26 or earlier to get it back like it was before?
It just doesn't seem to make any sense that I can retrieve and play music files and watch pictures on the PS3 successfully, but not video. To be honest the only reason I bought the MSS 2 was because it was DLNA.

If you could test your product against a PS3 with the latest firmware and confirm the issue that would be great. Fixing it would be even better.
ash