Snapz is shareware, it is not free. After the 30 day trial period the software costs $29. There are currently no free, open-source video capturing tools for the Mac. The good news is that Snapz is a slick and powerful tool. The captured video is of much higher quality than what's offered on the PC-side and the audio capture function works as intended.

Bittorrent is the underlying filesharing and peer-to-peer software that allows the easy transfer of very large files through distributed networks. Bittorrent also provides a "client," which is software program that an end user can use to download files using the underlying bittorrent software.