Original Apple Developer Group “The Byte Stuff” CD-ROM, part of the official Apple Developer CD Series — issued May 1992. Distributed exclusively to registered Apple Developer Group members during the early Macintosh System 7 era.

This release predates the PowerPC transition and features key developer tools, technical references, and APIs for Mac software engineering under classic Mac OS. Themed around the phrase “The Right Stuff,” this edition celebrates the “1992 Developer Champion – Mach 70” with distinctive silver, blue, and rainbow artwork — a standout among Apple’s collectible developer discs.

Condition: Good overall vintage condition. CD is very clean with no scratches; reads without issue. Case is original EcoPak with secure hinges and intact tray. Outer sleeve shows light rubbing, corner wear, and an old sticker mark on the lower right (see photos). Artwork still glossy and colorful.

A rare and early piece of Apple developer history, perfect for collectors of vintage Mac software, Apple memorabilia, or retro computing media.