Downloading DivXCAT 2.1 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. The common filename for the program's installer is DivXCAT.exe. We recommend checking the downloaded files with any free antivirus. The program lies within Multimedia Tools, more precisely Editors & Converters. The most popular versions of the program are 2.1 and 2.0. The actual developer of the free software is Digital Digest.
From the developer:
This program helps you with cutting DivX/XviD files if you create movies on more than one CD. DivXCAT analyzes your AVI file or (to save time) the log file (divx.log) created by your DivX and tells you where to split to get files of equal size. It considers both the video and audio bitrate. The program does not split the AVI files itself - it shows you where to split it and use your favourite video editor to perform this action.
You may want to check out more software, such as RosettaStal or MusEdit Viewer, which might be similar to DivXCAT.