I installed my Messiah 2, but need some help ...

[mud ver.2]

NTSC 39001 v7 (brand new, just opened last night)
Messiah 2 Pro (from Charlie_PS2)
Pioneer 104 fw 1.31
RecordNow Max full version

All of my CD-R backups work fine.

But my TDK DVD-RW backup of GT3 won't boot. The PS2 goes into browser. It recognizes the disk as a PS2 disk, and displays the "gold disk". But when I hit X to enter, the screen fades out to black as if to load the game, then goes right back into the browser.

I'm assuming this is a laser azimuth issue. Would I be correct ?