Philips CD-i were released: "", "" and "Zelda's Adventure". Nintendo and Philips had established an agreement to co-develop a CD-ROM enhancement for the Super Nintendo Entertainment System due to licensing disagreements with Nintendo's previous partner Sony (an agreement that produced a prototype console called the SNES-CD). While Philips and Nintendo never released such a CD-ROM add-on, Philips was still contractually allowed to continue using Nintendo characters. Applications were developed using authoring software produced by OptImage. This included OptImage's Balboa Runtime Libraries and MediaMogul. The second company that produced authoring software was Script Systems; they produced ABCD-I. Philips also released several versions of
CD+G format that allows for better graphics, but has very rarely been implemented in releases. Along with dedicated Karaoke machines, other consumer devices that play CD+G format CDs include the NEC TurboGrafx-CD (a CD-ROM peripheral for the TurboGrafx-16) and Turbo Duo, the Philips CD-i, the Sega CD, Sega Saturn, the JVC X'Eye, the 3DO Interactive Multiplayer, the Amiga CD32 and Commodore CDTV, and the Atari Jaguar CD (an attachment for the Atari Jaguar). Some CD-ROM drives can also read this data. Pioneer's LaserActive player can also play CD+G discs, as long as either the PAC-S1/S-10 or PAC-N1/N10 game modules are installed.