BigFatRock:

Gel3rt: Thanks. I think I understand you. So, for instance, I wanted to look for Lure Of the Temptress. It doesn't have a file with disc in its name and the three entries seem to be box covers. So there's no disc label file? Is that right? In fact, on that L page, only a Leisure Suit Larry game seems to have a disc when I search for the word disc. Am I doing it right?? Thanks for your guidance. :)

Gel3rt:

BigFatRock: That's right, we have very few covers / prints for discs, only a few have survived, unfortunately :-( Currently it is 191 covers / labels of this type in this collection.

But you can create a new, template that will help you in this is, for example:
DVD GOG COVERS \ GOG_TEMPLATES \ GOGTLATE_BY_MOBEEUZ.ZIP