I wanted to give that warning, because even though I have been on the internet since Al Gore invented it (sic), and fairly familiar with codec'* and re-formats. I myself fell victim to a really nasty one called Windows Police Pro. It isn't a virus, but a rouge program. It came right through 100 of thousands of computers with both Norton and McGafree. Including mine. It is hidden in a video torrent and activates when you use the supposed codec update within the torrent also. It digs right into your registry, and tags your virus software as viruses. It stubbornly keeps putting up "scanning for viruses" boxes and pop-ups requesting you to buy "Window'* Police Pro" Memory resources are slowly hog tied intil nothing else on your computer works. At this point, I gave up and reformatted my hard drive. I lost everything not backed up. Afterwards upon reading about the rouge program, I found that others had paid for the phony virus program and just got burnt. Paid out the ransom and got left without a fix. So I am now as cautious a torrent downloader as I can be. No torrent site is 100% safe, These torrents are everywhere.