I picked up a MP4 off ebay that was sold as a 16gb model. When I load it up with the files it crashes around 8GB. When I plug it into my vista computer it says that it needs to be formatted and the windows disk management shows it to be around 8 gig. I can only put files on it using it on my XP laptop. The unit restarts using the small reset hole when it locks up. So how do I correct the format size. I looked at the MP3 player utilities version 4 and I don't think it reconizes the mp3 player. Can I use windows vista to do the format and what type of format will it do? I understand vista doesn't do fat32 formating.