I have updated the conversion again to latest script version.
It is 2xDVD5 now (without supersecret.rar, which contains trash anyway).
Code:
12:51:11 - Starting Data1.bin.001 creation
12:54:46 - Finished Data1.bin.001 creation
12:54:47 - Starting Data2.bin.001 creation
13:45:06 - Finished Data2.bin.001 creation
Input size: 20.593g
Output size: 8.507g
Installation time: 10 minutes