This site has cracks for Midtown Madness 1 & 2, I don't know if the cracks for MM1 will work as a nocd, try them out. The MM2 cracks should work as a nocd. Nascar Racing 3 I couldn't find a crack on the 4 major sites I searched, so it probably doesn't exist. Morraffs maximum mahjongg doesn't seem to have a nocd either. So for the last two I recommend using
Alcohol120% to make a hard disk image and run from that. This will definitely work but takes up additional disk space. If that isn't good, you can try make a backup with Alcohol120% and use that, should be pretty easy too.