First of all, AVI and MPG are two very different formats. AVI is a more compressed format. It usually looks blurry and pixilated. MPG on the other hand typically looks much better. This is because the frame rate of the video is almost double that of the AVI format. Therefore MPG files will always be much bigger than AVI files. The problem with the sound I think is caused by your conversion tool. I'm no expert on this at all, but I think that you may have better results if you rip the audio to MP3 from the origonal video and convert the video seperately. Then reinsert the audio once you have converted the video. Be sure to search on
Google too. Good luck.
deepblue