I'd say K13A-748 and K13H-864 would be more appropriately titled "SUPER MARIO BROS.: MARIO SYNDROME / PRINCESS PEACH" as per
this (it's the track titles included).
For SMASH 23CD and its other prints, the Japanese version's back, obi and booklet p. 01-02 scans make it seem a lot like the artists' names are part of the album's title.