DivX Ripping With AC3 Sound

[betamac]

I have perfected the art of ripping a DVD with AC3 sound but at the minute its all guess work on the biltrate front and i often fall to short of my wanted filesize or go over which means re encoding, i am in desperate need of a acurate DivX calculator which supports AC3 sound can someone please recomend one as well as point me to a link if poss?

Thanks

[tgpo]

http://www.vcdhelp.com/tools

[Doc Boese]

Use this formular to calculate your bitrate:

Videobitrate = (M x (L / L1) - A) / 100

M = Lenght of the whole movie
L = Size of the Medium you like to use in kb (e.g. 800 MB = 800.000 kb)
L1 = Minutes you like to have on the Medium in seconds
A = Audiobitrate in kb

If the movie has a length of 90 Minutes is M = 5.400
If you like to use two 700 Mb CD-R's then is L = 140.000
If you like to rip the movie as an SVCD containing 50 minutes for one CD is L1 = 3.000
If the bitrate of the sound should be 224 kb then is A = 224
In that case ...
Videobitrate = (5.400 x (140.000 / 3.000) - 224) / 100

You should use 2518 kb/sec to rip the movie.

This formular will work for every kind of movie.

I hope that will help.