Burn
Burns to DVD, VCD, and SVCD. Take your downloaded videos and burn them to disks you can watch on regular DVD players. For VCD and SVCD you don't even need a DVD burner. Free and open source!
Handbrake
DVD ripper with MPEG-4 / H.264 encoding. The simplest way to save DVDs on your computer.
http://bestmacsoftware.org/
