ok let me try to explain this. ok everyonce in a while i will be looking through some files of mine (between 100-300 megs) and i will notice that they are like cut in half or less size. These are mostly Video files. and they are usually very old but i dont think they are allways extremly old. this of course makes them corrupted and such. Also im not sure but sometimes i think files just up and disapear... Now you have to remember I have alot of files. and its hard ot have a good memory with them.. just in the past i had some hardive problems and lost 3 (figured out it was a psu and replaced) But im just very edgy about this stuff. i think im gona run memtest86 just for the hell of it... (edit): no errors. btw 1. I have run the wester digital drive diagnostic software and i pass i do this very frequently. 2. i run active smart and the only errors i get are a occasion spin up time slow or seek error slow (glitches for the most part as far as i can tell.) 3 i run spybot and antvirus all the time) 4 i defrag rarely but i have recently and i never trust it maybe this is part of the problem. 5. and i have constant activity too 2 out 3 of my drives. (downloading). I just freakl out im tired of thinsg breaking and not working right and am low on cash to replace parts hehe.