THX for your idea. Have compared md5 for the same game between cIOS38_rev14 and cIOS38_rev15 for superdump 1.3. Finally its different.
But comparing superdump 1.3 to DVD-Dumper 1.3 on r15 its the same md5. Unfortunataly, I had no game which is listet on redump.org. Will try to find a game is...