what version are you running of nero 5.5 ? also what errors ... first thing i would do is download version 126.96.36.199 or 188.8.131.52 to see if it does it then ? also any other burning software ?
well let us know ...
also what is he using to burn ? I would use nero express cause alittle easiser an when you get an error it tells exactly ...xp pro u have xp 1 installed or what ?
IM me if you have probs or questions