PocketTV Team

By the way, the compression efficiency of MPEG-2 is about the same as that of MPEG-1 in case of progressive video (i.e. film), in fact the progressive mode of MPEG-2 is almost identical to MPEG-1. I was a member of the MPEG committee and actively involved in the development of MPEG-1 and MPEG-2, so I know what I'm talking about here :)

So by encoding progressive video in MPEG-1 at VGA resolution, you will get basically the same video quality, performances and compression efficiency as MPEG-2.

The purpose of MPEG-2 was ONLY to have support to encode interlaced video (i.e. for TV CRT interlaced display), since MPEG-1 works only with progressive.

But Pocket PC's have progressive display, so if you were to play MPEG-2 interlaced, you would have to de-interlace the video in order to display it. This process is not efficient (even though the 2700G can do it), so you would in fact get a better quality by doing the de-interlacing in the source (also called inverse telecine if the source was 3:2 pulldown), and encode your video as progressive... which can be done with MPEG-1 with the same efficiency.