In it's retail state (just like all other LEGO Games) this game is impossible to compress properly. In order to make a decent conversion, you first need to use QuickBMS on the DAT files to unpack them.
You can download QuickBMS
here.
You will also need the TTGames BMS script which you can get
here.
Drag the BMS script over the QuickBMS EXE file and select all the DAT files. I like to unpack to a separate folder then merge the files with the rest of the game after unpacking, but it's perfectly fine to unpack to the game directory.
After unpacking, move or delete the DAT files since we no longer need them.
Test the game to make sure it still loads correctly, it will load from the raw assets just like it would from the DAT files.
Total retail size: 4.13GB
Total size after being unpacked using QuickBMS: 7.62GB
Compress using the following method:
- *.bik
- *.ogg
- *.wav
Code:
msc:wav=1:tak=9+srep:a2:m5f:l512
- Everything else:
Code:
srep:a2:m5f:l512+lolz:dt:dtb1:dtw1:dtm1:dto1:dtd1:mtt1:mt4:d64m:fba4096
Total packed size: 1.52GB