When I try to transfer my ripped MP4 files via the supplied USB cable the bar gets to just over 50% and then fails after about 10 minutes. I have installed the the XOOM drivers. The files are about 1.5 gigs. They were ripped with Xilisoft.
Ummm it sounds like an issue with whatever computer you are using to transfer the files from.I have 6 or 7 movies that all transferred without issue and all of them were over 1.5 gigs. I would try with a different computer and if that isn't an option delete and reinstall all the drivers.