Thanks for the replys guys. I make sure to keep my machine updated with the latest firewall and antivirus updates and I do regular spyware removal sweeps. I haven't got anything nasty yet from them (that I know of anyway). Another thing that seems strange about these files is the bitrate of many of them. Most people who rip music will rip at bitrates of 128, 160, 192, 256, etc. These are common rates to use, and lot of these other files are done at odd intervals like 147, 168, 225, etc. There is just alot about the files that give off a bad vibe. Yes, I have downloaded them before and they seem to play fine usually. I try and stay away from them if I can, but sometimes that's all I can find. Most of them don't appear to be fragments either, as the song duration and file size seem normal.

I don't know what the deal is, but I don't care for them and I'm staying away from em'.