So if it is supported minus music how can i get it to play if itdoesnt "see" it?

Hi I have the PS version of Discworld which is one disc with the below files on but when i copied this into the scummvm files and tried to find the game via scummvm it says no files found? discworld1 worked though, please does anyone have any ideas? the disc is my genuine one blank2.bin discwld2.lfd...