Tested in 32-bit WINE set to Windows 98 with DirectX9 installed via winetricks.
Instructions: mount the ISO file, run the executable, install preferred demos.
Almost all demos require DOSBox to run. The launcher cannot run those games for some reason (at least on Linux and WINE), you'll have to manually run each one. Not all demos are guaranteed to work.
Contents (ordered as they appear in the CD):
Descent - Installs and runs fine. Gate World - Installs and runs fine. Jazz Jackrabbit - Installs and runs fine. Raptor: Call of the Shadows - Installs and runs fine. In Search of Dr. Riptide - Installs and runs fine. Xargon - Installs and runs fine. The Lost Vikings - Installs and runs fine. Brudal Battle - Installs and runs fine. God of Thunder - Installs and runs fine. SkyRoads - Installs and runs fine. Zone 66 - Installs and runs fine. Helious - Installs and runs fine. Heretic - Installs and runs fine. Bricklayer - This one doesn't use DOSBox. Installs but doesn't run. Hocus Pocus - Installs and runs fine. Draw 5 Poker - This one doesn't use DOSBox. Installs but doesn't run. Rise of the Triad - Installs and runs fine. One Must Fall - Installs and runs fine. Outlaw 97 - Installs and runs fine. Ancients I: Death Watch - Installs and runs fine. Baron Baldric: A Grave Adventure - Installs and runs fine. Duke Nukem II - Installs and runs fine. Ken's Labyrinth - Installs and runs fine. Magic Carpet - Installs and runs fine. Terminal Velocity - Installs and runs fine.