i'm curious too.
A buddy of mine bought a 5gb samsung mp3 and then it stops working a week later. So he calls them, and they say it's a drive error, and it's a manufacturing fault. So he recieves a 20 gb one in the mail, and has a choice, he can send back his old one to recieve warranty or keep it. After playing around with it for a while, he managed to reformat the disk and it works. So it worked out reall good.