Unusual Stuttering and Halted Playback

[Aaron407]

I'm having a couple issues with streaming standard resolution xvid AVIs to my Sony BDP-S370 (newest firmware) with Mezzmo v2.1.13.

Every 9 or 10 minutes (but often randomly as well) it ends up having a rather severe stutter in the audio and video that lasts for about 10 seconds, but eventually subsides and playback continues smoothly. I have confirmed that it is not transcoding, is not network congestion, and nothing else is happening on the computer at the time, so I'm not sure what to look for.

My other problem is that it seems, with many of the same type of video file, my BDP-S370 is made to randomly think that either the end of the file has been reached, or something else has happened to halt playback. The video file will freeze at a random position and the player will continue on to the next file in the list as if the previous one had ended. Not sure what to think of this either, and I'm not sure if it's linked in any way to the first issue.

Note that no other media servers I've used in this setup have exhibited either of these problems, so I assume it's something in Mezzmo. The stuttering problem is also present when playing through my PS3. Some other files work perfectly fine, including many 720p mkv's that I've transcoded on the fly from my core2 duo 1.83GHz, so I'm at a loss. Any ideas what could be causing the issues?