Just took the plunge into networked media storage with my new Western Digital My Book Live Duo (2 x 2TB that I put into RAID 1). The installation disc made things a snap, and things seem to be networked properly: my desktop, laptop, BDP-103, and WD all are recognized, and I've successfully transferred files to the subfolders (video, audio, picture) of the public folder of the WD.
The BDP-103 displays jpg images fine; plays flac audio fine (still need to check out other audio formats); and plays avi and mpg video fine.
MY QUESTION: Why do mkv files that I have copied to the WD not even show up in the video directory of the BDP-103 (they do copy properly and appear in the directory when viewed on my computers)? I've seen some other discussion here about nuances with the mkv format (especially subtitles), but, again, I can't even get the files to display as a menu choice on the Oppo.
Oh, and the WD is configured as a DLNA media server (which others, it seems, have had success with for playing mkv files). Any ideas, folks?