sizing mpegs

[swanside]

Is there any rule that can be used when sizeing and mpeg to fit onto a cd.
I use TMPgenc to make the mpegs, but besides making the whole movie and cutting it, is there a way of knowing how many frames fit onto a 80 min disc?
Thanks

[BerrantRyke]

http://www.vcdhelp.com/vcdtools.htm

Try the bitrate calc to figure out what bitrate to use to fit the movie onto 2 80MIN CD-R(W)'s...

[roboripper]

Hmm what is the benfits of using this caculator instead of a regular one?

Right now I have only ripped single disc dvds i guess it would come in handy for multiple dvd rips right?

Because the way I do it is when I encode my mpegs I look at the last frame number and divide that by half.

Set the start and stop frame and vola 2 mpegs.