!!!Atari Educational System - programming cassette streams
tschak909 from AtariAge did discover how the cassettes for the Atari and Dorsett Educational System can be programmed. In the near future he will publish a book on that. Until that time, please take a look here:\\
[EduEncode|http://atariage.com/forums/topic/238262-eduencode-a-library-for-encoding-atari-educational-system-tapes/]\\
and here:\\
[Disassembling the Educational System Master Cartridge|http://atariage.com/forums/topic/237822-disassembling-the-educational-system-master-cartridge/]