Extract ISO to Ice Age 3 Folder
Delete files: 0x0809.ini , 2057.mst , ENG_cab.cab
Edit file Setup.ini:
[Languages]
count=6
default=409
key0=413
key1=409
key2=40c
key3=407
key4=40a
key5=41d
Burn Ice Age with label: IA3_DVD
and you have multi6 version
4,27 Gb