Thanks for this.
I made a preconfigured diskspan file for easy compressing.
Change the method inside _DiskSpan.bat if you want
Code:
set GAME[1].METH[2]=oo2reck+srep+LZMA-MT
If you want max compression change LZMA-MT to lolz with your options.
In order to install the conversion without errors, apply patch to Setup.exe with Apply_Patch.bat in Setup_Files folder.