Note: This is only known to work with the original 1999 release of LEGO Racers, not the 2001. Running without the JAM Archive allows you to easily change files without having to re-build the JAM archive, it also allows you to change files while the game is running. To do this: 1. First extract the JAM archive. 2. Make sure the folders: 'GAMEDATA' & 'MENUDATA' are in the same directory as 'LEGORacers.exe'. 3. Rename or remove the original 'LEGO.JAM file'.