I have a Sony camcorder that records in muxed Mpeg-2 form. When I import the movies from my camera onto my imac, there is video but no sound when played in imovie or quicktime7. After hours of support w/ mac, it was determined that I needed to use MPEG Streamclip to convert the videos. Currently I am doing the following: -dragging movie to be converted into quicktime -going to file & choosing "export to quicktime" -I have tried various compression formats in the window that pops up (Apple Motion JPEGA, Apple DV/DVCPRO-NTSC, etc). After the video is converted, I can see video and hear sound when played in quicktime7 - and they also work when imported into Imovie which is great. I have hundreds of videos to convert, and I will be doing a batch conversion (well, several batches). My questions are: 1. Is "export to quicktime" the best selection, or should I use a different choice under the file menu? 2. What compression format should I use? 3. Are there any other settings that should be adjusted (sound, frame size, etc) - there are so many selections on the streamclip menu that I'm a bit overwhelmed. Here is some additional information that might help: -I'll be importing these converted videos into imovie to do some editing -Final product will be a DVD of home movies that I want to play on a standard definition or high definition TV via a DVD player - these are all movies of my infant -I want the best quality product within reasonable file size since I have hundreds of videos (most are 2-3 minutes in length, longest might be 5-10 minutes). I'm MOST concerned with best quality as I can store these files on an external hard drive if needed (if in order to have good quality the file sizes need to be big. I know very little about this) -I want to make sure that there aren't any wavy lines (some of the compression formats seem to cause there to be wavy lines especially when there is movement AND sound at the same time on the video) Thank you so much for a thorough but clear explanation - I'm very new to all this and just really want to convert these videos of my sweet baby so that we can enjoy them!