I looked to see if it was released as greatest hits and it wasn't on the list I seen. Safe to add original?
Guess so.. it's still missing the offset though 
and there are a lot more non-demo games missing edition info: http://redump.org/discs/system/psx/sort/edition/ .. e.g. http://redump.org/disc/339/ , http://redump.org/disc/455/
Well, I will go through and add what I can, the Wild Arms 2(U) I guess was never sold as greatest hits so I can add the edition for that as well (I only have the discs).