I recently bought a copy of Intruder's "Psycho Savant" from a (Japanese) Ebay seller that I'm familiar with and trust by now. It's a 1991 Metal Blade album, but the inner ring on the CD bottom is printed forwards. On Ample Destruction, 1990 Metal Blade, it's printed backwards. On Apocalypse Inside, 1993 Metal Blade, it's printed backward as well. Old CDs are known to have been printed backwards on the inner ring, but the early ninties might have seen it get reversed. Is there a way to tell if my Psycho Savant is legit or not, since this method is causing some doubts? Thanks for any help!

Look for the number on the CD as marked by the distributor or record label and then go match it by emailing an inquiry to the label to verify.

Yes. That and usually the sound quality/production will be extremely poor, in most cases.