MPEG-4
From MythTV Official Wiki
MPEG-4 contains two advanced video codecs that provides higher quality per kilobit than MPEG-2. The trade off is additional CPU power is required to encode and decode the video.
MPEG-4 contains two advanced video codecs that provides higher quality per kilobit than MPEG-2. The trade off is additional CPU power is required to encode and decode the video.