heather: .rar .zip .tgz etc... files are compressed archives that contain other files, you have to "un-rar" it to get the file(s) in the archive.
archiving video files is pretty pointless anyway, since avi, mpeg, etc... are already self-compressed formats. so the .rar or .zip file is around 99% of the original filesize(s).
and btw THANKS to pouet and the others who uploaded it ....
for those who dont have it, enjoy!