What is the most versatile video converter for an Apple Mac running OSX? I have some videos that I want to put on an Archos AV500. The AV500 is a small portable video player with a 4" screen. Some of the videos were downloaded from the web. The videos are in a wide range of formats, many of which do not play on the Archos AV500. So I am looking for a video converter that is very versatile. Plus hopefully one that's also fast. Obviously a free one would be preferable to one that I have to pay for. I have tried ffmpegX and iSquint. But neither works with all files that I need to convert. All advice appreciated. Thanks.