the corupted message meant that the file in question is broken or fake and should be canceled . if ur d/ling software it could be a virus or it just wont work when its compleat . if its a video it moast likeley will just be some static or interferance in the movie for a second or 2 . if its a song its probobley a fake or it has some bad distortion that will show up as a loud blip or pop noise in the song. yea norton is good and if a virus gets in it should catch it and delete it without you having to do anything . but to be safe scan any software or zip or rar files you download . just right click the file you want to scan and the menu that shows up should have a "scan with norton antivirus " option or simaler. im going to bed now so dont expect any more replies for 18 hours or so ....its 3:00am here...