I am using a german version with a crack intro. Starting the game shows the crack intro, afterwards a message pop up, not enough memory is available, even if booting without startup sequence.
I have edited the starting file and removed the line which calls the crack intro. Now the game runs without a error message and music in game plays.
One thing remains. There are only a few sound effects, like open door. but no ringing sound of the phone. Is this normal for the disc version?