OP Size Constraints =====
DVD, VCD, and SVCD also constrain you to relatively low GOP (Group of Pic... R at 1152 kbps. This highly limiting constraint also comes along with an extremely low vbv buffer size... c3 is most commonly used for DVD. PCM audio may also be used for DVD, but this is mostly a big waste o... mpeg2video is usually used for DVD but you may also use mpeg1video for CIF resolutions.
* keyint: U