These were made by DiscoVision for GM to be used in staff training, and showroom displays (this title is of the latter variety).

These will play on most consumer players, but were designed to run on the DiscoVision PR-7820 which could process the code on the discs for implementing the interactive menues (which functioned to almost the same complexity as modern DVD).

The layout of the program material on these discs is sometimes apparently chaotic when played straight through. this is because some were mastered with the beginning of the program in the middle of the disc - which would have reduced seek-times when jumping from the main menu to various sections.