HandBrake
The open source video transcoder

Downloads (Command Line)

Command Line Version: 0.9.9

Mac OS

For Mac OS X 10.6 / 10.7 / 10.8
Download (Intel 64bit)

Windows

For Windows XP, Vista, 7 and 8
Download (64 bit)
Download (32 bit)

Ubuntu

For Ubuntu deb
Available at: Ubuntu PPA page.