Encoding in divx 5.02

[dsenni2000]

I have these 400 mb mpeg's of these 45 minute star trek episodes that i downloaded off the internet. I want to make them divx 5 avis so i can fit 2 on a cd. I am opening the files in virtualdub and saving them as divx 5 avis. When i open them and compare it with a divx 3 or 4 version (of the same video) that i encoded earlier, the divx 5 version looks grainy and worse quality. They are both the same bitrate, and in fact i even tried boosting up the bitrate (to like 2000) for the divx 5 and it still had bad quality. Isn't divx 5 supposed to have better quality, or am i doing something wrong?

[KingJohn]

You dont need to post this in more than one topic

http://www.vcdhelp.com/forum/viewtopic.php?t=112999&highlight=