Pioneer DVD-RW 103 Problem

I am trying to burn back ups of my PSX games. When I load the .cue sheet I get the error, “This drive is unable to make real 1:1 copies using this data type!” What does that mean? I cant burn in DAO / SAO? My copies wont work? Can anyone suggest a decent DVD-RW drive that supports this data type? Thanks

BTW I am using Alcohol

the problem could be that RAW cd images cannot be written/burned to DVD discs.

Not burning to DVDs, PSX games are CD based only… it is a backup image of my physical disk, not a download