Hate to rain on the MS S*** storm ....
I have copied all my music, (20 GB's) worth from a xp machine to a vista laptop and it worked fine..(45 Min). I know these are smaller files but still a lot of Data.. Copied 8 gigs of Human Genome files too (larger single files), and these copied fine also..
Don't get me wrong I don't like Vista anymore than anyone else but i don't see the errors yet.. I guess I'll try some other large single files and see what happens...