TS-409 Twonky 4.4.9 and MP4 files PS3

[braddersmd]

Just purchased a TS-409Pro. Configured to use the Seagate 1.5TB drives (Version 2.1.2(1112T)). System is running Twonky version 4.4.9

All seemed well and good streaming to the PS3, over my wired network (100Mb), until I tried to access MP4 video backups.

Locations are all setup correctly, and I can view every file type apart from MP4. Further, if I set a folder with only MP4 files in, the folder name does not appear either. With other files in a folder along with MP4, folder displays OK, other files OK, but MP4 is missing.

I have tested the same folder structure using Tversity, and the missing folders and files appear, and are playable on the PS3, so I am assuming that the PS3 end of things is working correctly. Have also checked that the PS3 is listed as a valid client withing Twonky, and it is recognised as a PS3 - again, all OK.

I have even run the Twonky Media Manager on my PC, to check that way - again, all locations are showing OK, but when you try to view video by folders, the MP4 files are not showing, and if only MP4 inside a folder, the folders are not showing. All points to the TS-409Pro and the copy of Twonky running on it - 4.4.9

Edited to add that I have also performed re-scans via the web interface, via the Media Manager on the PC, and also shutdown and restarted the TS-409 several times.

All suggestions welcome. Have posted this to the QNAP forum also, but although many views, no replies yet.

Thanks in advance, Mark