Well helloo...stay away from zip files
No, seriously, zip files are notorious for being infected (rar & exe files also). Stick to the file types like avi, mpeg etc.Always check a video file with Bitzi before download. If the file's been rated then you'll get an idea of it's content & quality. Files with lots of sources but no bitzi rating are probably fakes & should be avoided.
How to use Bitzi WARNING: Viruses on the network you should be aware of