How the heck is this possible

[vulcan4d]

Okay when it comes to SVCD's I'm a newbie. Now that I got an APEX dvd player I'm finally doing all the video editing/converting etc myself. I'm playing mostly with SVCDs, and I noticed that I can fit a ~45 min episode to one 80min CD with a 2200kbit/s bitrate.

I remember though one time I downloaded a XVCD off the internet. It too was around 45min, but I think it was more of a XSVCD because to actually play it I needed to download a Mpeg2 player. I actually tried to burn it onto a CD, and later on after finding out more information I wondered how did it fit onto a CD??? I remember the video specs exactly to be,

720 x 480
23,976 fps
6000 kbit/sec MPEG-2 (yes that's right, 6000, verified in multiple programs)

I don't remember the audio specs but that's not important right now. Now can you explain to me how the heck did that fit onto one CD? Back then I used the Nero guide to burning X(s)VCDs of this site, not sure if it's still here. I'm currently making SVCD's which are 1/3 the bitrate and lower resolution that take as much space as that XSVCD did. I wish I had the CD with me right now, but I can't seem to find it. I did burn it quite a long time ago. I remember those specs clearly so that's no mistake, and the video and sound quality of it confirmed it aswell so how the heck was it done?

[Sefy]

The resolution and frames are not important for the file size, just the video and audio bitrate, now, it is (as far as I know) impossible to use such a high bitrate, but! it might have been VBR using 2pass propably, so the average is not all that high, use Bitrate Viewer to check the movie to make sure.

And also check how much bitrate the Audio was too!