One of my issues with this database is that there are different regional names/cover art/special editions/disc versions/additional content, but there is no way to express that info. Like PS2 Greatest Hits, for example, one size fits all but doesn't really.
I feel the database is designed backwards - the disc name (USA usually) is the master key, and the packaging variations are ignored. But the package IS the product, the disc is only part of the package. Packages are composed of cover art, special contents, packaging (like steelcase or other special stuff), and the disc, and may vary from region to region, Greatest hits, or whatever.
Also full cover art would be an excellent addition.