[tbaher]

I doesnt recognize the original CDs after the patch?
Try this:
Make sure you have no other CDs or that the CDROM drive you're using to play the game is the first letter (among other devices except hard drives) and put your original CDs in and install from there

as for the memory thing try running it in compatibility mode: win98

PS: you probably read the forum rules so I'm assuming you have original CDs and this is not a warez crack-on-install thing and the patch replaces the EXE with the new version that's not cracked..