SNES9X GX Invalid Dvd

Does anyone know how to get the dvd loaded in this emulator. Everytime i burn a disc with files and try to load in in Snes9x Gx it says invalid dvd.

Did you install DVDx first?

Yes I have dvdx installed and dvd's play fine through mplayer.i'm burning the disc with imgburn iso9660 with the files at the root of the dvd.uncompressed roms.my wii has 4.1u hbc preloader.29 cioscorp3.3 dvdx hbc.Thanks for the reply.

Fce ultra will read it and load the nes folder but snes9x will not read the snes folder???