Thanks, will try that when I get time. I think it may at least vaguely indicate a high transcoding bitrate, though, since:
- The problem doesn't occur when streaming via TVersity, unless you're streaming an extremely high-bitrate file with "decrease the bitrate if it is too high for my network" disabled.
- Video plays smoothly when the bitrate is shown to stay within manageable levels.
- The mentioned small file copying to the PS3 with a huge size would indicate a high bitrate.
Also, I just checked, and the 400mb PS3 Media Server buffer fills up within two minutes of beginning to play a file. With "Maximum bandwidth in Mbits" set to 20, and "AC3 Audio Bandwidth in Kbits" set to 384, the media player's Status window showed a peak bitrate of 33816 kb/s (and the Current bitrate values shown seemed to average around 30000). This was on a file that played relatively smoothly in comparison to some times, so I'm assuming it wasn't the most extreme example of the problem.
The weird thing is, it actually seems the problem may be random. After restarting the media server, the same part of the same file transcoded with a lower bitrate (as reported in PS3 Media Player's Status screen). Restarting the media server doesn't always solve the problem, though, as I'd tried it earlier with no luck.