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.
Some demos may either require DirectX 8.0 or greater, or use MIDI, which you'll have to set it up if using Linux and WINE.
You can install demos via the launcher just fine, though installing manually could be more a more sure way to do so. Some demos can be run directly from the CD, no need to install. You might have to manually extract them and give them read-write permission. Most demos will only launch via the installer if the game path is in Portuguese. Launching those demos manually is recommended instead.
Contents (ordered as they appear in the CD):
Anachronox - Installs but doesn't run. American Civil War - Doesn't run. Buggy Racers - Runs fine. Cycling Manager - Installs but doesn't run properly. Colobot - Installs and runs fine. Project Eden - Installs and runs fine. FreeGen - Installs and runs fine. G-Sector - Installs and runs fine. Laser Assault - Installs but doesn't run. Max Payne - Installs and runs fine. Installer may hide under the launcher. Merchant Prince 2 - Installs and runs fine. Mobility - Installs and runs fine. Uses MIDI. Odyssey by Car - Runs fine. Open Kart - Installs and runs fine. Deep Green Reversi - Doesn't install. Speedway - Doesn't run. Ultimate Steroids - Installs and runs fine.