kaarma33 said:
Bittorrent Sync pro seems to handle large file sizes alright. Once the files are shared with others then other people can share just like bittorrent, but privately with a Bittorrent Sync key.

This is an interesting idea. Perhaps great for distribution immediately after each new release is announced, but maybe not so good for long-term availability for those who discover Team Blu's work at a later date. A bittorrent tracker would keep the torrent active for a long time, ensuring that late-comers would be able to download the older releases.