Where can one purchase a CDG karaoke machine?

CDG karaoke machines cannot be purchased as the format is defunct and no longer used. CDG (Compact Disc + Graphics) is a format introduced in 1984 that allows for the storage and playback of audio tracks and synchronized text lyrics on a single CD. However, the format never gained significant traction and was eventually overshadowed by more advanced karaoke technologies such as DVD and digital streaming.