I have a htpc which I just recently installed winxp on a new disk after the old main HDD and motherboard died. I had a second 200GB WD2000 in there which had all my recorded TV on it. Now with winxp (no SP's installed) it all runs fine but any of my 50 or so previous recordings refuse to play properly... its very strange, they play segments from all the videos on the drive... parts of dvd video thats on the drive, then parts of the selected video and parts of the other .mpg files randomly. Its like watching tv and someone keeps changing the channel. I copied one of the files over to another machine and that did the same thing, so it looks like the HDD has gone crazy.. Im defragmenting it right now but surely that cant be it? Has anyone ever heard of something like this happening before??