From http://www.jaguarsector.com/index.php?showtopic=32034

* Entire source code, graphic files and engine (over 3 CD's of data) It is the Myst Beta 1.1 version dated 11-16-95.
* ISO 9660 track files to produce master copies of Myst v1.0.
* Myst Beta v1.1 date 10-24-95, ready to be burned in Discjuggler format (bypass cart or dev system required to play). Artwork for the burn is also included. The final MYST release was version 1.8.
* Several CD's worth of data that were only readable by an old Mac G3 that I have converted over into PC format.
o Myst Collateral
o Myst for Japan
o Myst Hypercard
o Myst Additional Data * Lastly, as a bonus for the limited edition release, these 50 numbered copies will include Myst Alpha v0.6, burned and ready to play (bypass cart or dev system required).