@jblaze0518
I too recieve the emulation errors when trying to use the original discs to play but have so far been lucky to find NoCD cracks for the games I own. (Not that I have NFS-Underground2 yet, but have it ordered and will have it Friday)
I know there are already NoCD cracks available for NFS-U2!
Go here:
http://spacetarget.com/games/pc_nfs_underground_2.shtml
@tombo800
Nice link.
Will be very helpfull to a lot of people.