First off, I have an HTC Eris running KaosFroyo v36 So I decided I was going to encode a movie to Mp4 (from a DVD I own) to put on my phone so I have something to watch at work. To do my encoding, I used Any Video Converter with the following parameters. Video Picture size: 480x208 Codec: x264 FPS: 24 Bitrate: 380 Audio Codec: AAC Sample: 44.1 Bitrate: 160 This was my first time playing any video on my phone, and when I got the movie on there, I was very happy to see how well the Eris played. The sound stayed in sync even after navigating and there were no hiccups or delays in playback at all. And then I got about 3/4 of the way through the movie. At around this time, the video freezes on one frame, but the audio continues to play. The phone wasn't locked up or anything, the video just stopped. The navigation bar also moved all the way to the beginning. I've seen this happen before in some movies on other players/software (minus the navbar moving back) and found that navigating just ahead of the offending point will usually allow me to get through the rest of the movie. Now here's where it gets interesting. After trying to navigate just passed the bad point, sure enough the video plays just fine, however now the audio that is playing is sound from the beginning of the movie. The first thing I thought was that Any Video Converter encoded a bad movie. I tried encoding again, this time in HandBrake, with the exact same parameters. The movie had the exact same hitch in the same spot with identical behavior. I tried playing the movie again in different media apps with the same result. However, the movie plays with no problems at all when I run the same Mp4 on my PC. So it's now narrowed down to the phone. Any ideas on what could be causing this behavior?