The merged titles look consistent in the database, but not the dat names, which unfortunately for my OCD look like this:
Blur (Press Kit) (USA)
Blur (USA) (CD Press Kit)

I don't know if that is intentionally correct, or what.

Could the dat name of that first one be changed to "Blur (USA) (Press Kit)"?

I see a lot of dat entries (over 60) that end with "(REGION) (Press Kit)"

By comparison, there are few dat entries with "(Press Kit) (REGION)", here they are in case you'd like to adjust them.

Blur (Press Kit) (USA)
Bouncer, The (Press Kit) (USA)
Crash Bandicoot 3 - Warped (Press Kit) (Europe)
CTR - Crash Team Racing (Press Kit) (Europe)
Disney's Peter Pan - Adventures in Never Land (Press Kit) (Europe)
Front Mission 3 (Press Kit) (USA)
Midway E3 2004 (Press Kit) (USA)
Priest (Press Kit) (USA)