Add Subtitles to Divx File

Hi All, with the advent of the PS3 getting Divx subtitle support in it's latest firmware revision, I'm trying to encode a Divx file to add subtitles.

I can't for the life of me find a Mac application that will add a subtitle stream to a Divx file - usually this results in the creation of a .divx file.

(.divx file containers support multiple audio and subtitle stream, and that is the format the PS3 requires the file to be in to play back the subtitles).

I do not want to "burn in" the subtitles to the video stream as this would require transcoding the video, which I do not want to do (time consuming, and can ruin a perfectly good encode).

I've found the following programs for Windows, but can't seem to find a Mac equivalent:

http://www.calcitapp.com/AVIAddXSubs.php
http://www.trustfm.net/divx/SoftwareAviSub.php?b2=1
http://userxp.tripod.com/sub2divx.htm

As you can see by those bits of software, they simply take the avi file, the srt file and combines them into a .divx file with no transcoding.

Has anyone got a similar solution for the mac world? I tried using the AVIAddXSubs via Darwine but it didn't seem to work.

Update - ok I did get AVIAddXSubs to work in Darwine, but I had a weird font problem (to do with freetype I believe), so only got symbols instead of proper characters...

Yep, I'm still after a nice mac solution - surely other people out there have a need for a similar program?

Since posting this originally, I've done it a few times, using the Windows software I mentioned in the first post:

http://www.calcitapp.com/AVIAddXSubs.php

This works well using this build of Darwine:

http://www.kronenberg.org/darwine/

And installing the fonts in the package that comes in the download.

Has worked perfectly well for me, even though it's probably not the ideal solution.