The game keeps asking me to insert the CD, but it's already in
1. Disable Flexi-CD - This is part of Power Toys, which is installed (optionally?) in the '98 Windows Plus Pack. (I am told..)
2. Put it in your other CD-ROM.
3. Is your CD rom REALLY old and having trouble reading the mixed mode audio?
If you cannot play the audio tracks with CD PLAYER, buy a new CD-ROM from at least the 90's.
4. Go download version 1.08, it no longer has CD protection. You won't lose any saved games.