Hi m8ty
I totally agree with the above posts,cdclone or cdrwin is the way to go for backing up psx games.
the problem with nero is that in does not support reading sub-channel data from tracks which is a feature of the psx protection.
Use cdclone to make 1:1 back ups and check on the megagames site to see if any of the games you are trying to back up are mod-chip protected,that's when cdrwin and 'patching games comes in'.
Get a program called clonyxxl from
www.cnet.com , it detects the protection on a disc and then you start up clone from there and it passes on the settings needed to clone.
Firstly check
www.elaborate-bytes.com (the clone website) to check for compaterbility to your reader and re-writer.
Hopes this helps