Do I have to use CDRwin?
 

I saw a couple of utility programs on megagames.com that says to burn with CDRwin.
My question is:

Can I use Nero or do I have to use CDRwin?

CDRWin was originally written for the express purpose of copying PSX games.
NERO was written to see how many bugs could be collected together in a single program.

Will I have problems if I have both on my PC? I heard it can happen with some programs.

I have no conflicts with CDRWIN and Nero. BTW, you can use fireburner to burn bin/cue files