If someone doesn't know how to do it (not that likely) or is just lazy (more likely
) here's batch file to do this process.
This works on EN/ES version, manifest files are from ch2rom and chaser8x.
Simply create temp folder, extract this archive to it then create folder named Disc1 in this temp folder and copy contents of Dragon Age DVD9 to it. You should have something like this when you're ready
After that just doubleclick split.bat and wait until it's done. You should end up with temp folder with two iso images, everything else should be clean
*edit*
Made a typo with bat file, if you downloaded file name dosplit.rar that one is wrong (beside o in the name :P). dasplit.rar is fixed.