In the MAME roms section, I have had no trouble with files, till tonight. I was in the B section, and Malwarebytes and Avast both blocked several roms from downloading. They were: Bosconian (all versions of it triggered blocking), Blaster, Banbam, Centipede revision 1 and 3 were also infected with spyware, rev two downloaded ok. As did the rest of the handful that did come through without incident. I haven't tried them to actually play yet, though I am sure they will be fine as I have never gotten a bad rom here, nor did the spyware programs get triggered till the above files. Great site, just joined tonight, have to make a donation when I find my paypal info!