I just bought the fake ipod touch 8G mp4. I belive it is a rockchip. Anyway I was having troubles playing .avi on it. Use the AVI Converter 3.0 that comes on the disc that came with the MP4. It converts pretty quickly, however the status bar in the program does not work. You just have to wait until the converted .avi file will play on your computer.(I currently use the VLC player which works the best out of any player I have used.) Once it will play on your computer, you can then transfer the file to your MP4. On some files though, the audio and video go out of sync after a couple minutes. Hope this helps....
Does anybody know if I can install any codecs onto my MP4 to help with the sound?