Hey guys, I've been trying to convert some videos with Xilsoft converter and I was wondering which format should I convert it to? The standard mp4 640*480 or the new MP4 AVC (h.264) but I think they only support that in 320*480 resolution? Anyone know which is the best format to convert to to maintain video/audio quality. Also I've noticed that sometimes my videos lose audio sync after a while. Anyone know how to solve this problem? Thanks!