you seem confused on the distinction between the scene and P2P. pretimes have nothing to do with this. the torrent sites aren't the ones doing the capping, encoding, or releasing.
when you see on your torrent site that a show has a pre-time of three minutes, that's the time it took to grab the show from a scene FTP topsite, download it, make a torrent, and upload the .torrent file to whatever site you are using. when a torrent 'pres' is when the scene releases it. before the pretime, the torrent is encoded, rar'd and FTPd to a scene FTP dump.
the reason that split rar files are used is so that the scene uploader only has to upload the first chunk before they can claim credit and other groups can begin to download. if the release was uploaded all in one piece, it would have to be uploaded completely before anybody could start to download it. with split rars, other groups can have the file almost completely downloaded by the time it is completely uploaded.
Scene groups are known as affils or affiliates
when they release on a FTP site. When they release
something..racers and traders start racing
that release to other FTP sites at Gbit speeds
using auto mated scripts.
When they Release something on a ftp site it is
known as to pred or a pre. pre means the
release is ready to be raced to other ftp sites
NOT torrent sites. Remember all scene groups
hate torrents and do not want ANY of their stuff
on torrent sites. If they see someone on their FTP
sites releasing stuff on torrents, his ip gets
banned and he gets NFOed sending a warning to
other FTP sites to delete purge him and never to
allow him anywhere near scene ever again.
when you see on your torrent site that a show has a pre-time of three minutes, that's the time it took to grab the show from a scene FTP topsite, download it, make a torrent, and upload the .torrent file to whatever site you are using. when a torrent 'pres' is when the scene releases it. before the pretime, the torrent is encoded, rar'd and FTPd to a scene FTP dump.
the reason that split rar files are used is so that the scene uploader only has to upload the first chunk before they can claim credit and other groups can begin to download. if the release was uploaded all in one piece, it would have to be uploaded completely before anybody could start to download it. with split rars, other groups can have the file almost completely downloaded by the time it is completely uploaded.