I downloaded the file from the FTP. It's usually pretty obvious when a file gets messed up. Some b00n with either delete it entirely or overwrite it with a truncated (4-10MB) file. I don't think we've had any trouble with people posting "fake" files with the proper size but wrong contents. If we do, I'll have to start asking for and verifying MD5 sums.
If no2chem wants to link to the torrents, he's more than welcome and I would be honored.
I can't get a PayPal account so this is the closest I can get to donating.