Jenny the very first time I ran the game it ran error free all the Way to the end.
Then you were incredibly lucky. It ran well on very few computers. Most people had crashes.
The game should have had patches, but the developer went out of business.
I don't see why it shouldn't run the same way the 2nd Time or each time its run.
Think about what is different about your computer now compared to the first time you ran the game. Do you have the same video card? Do you have the same video card but different video drivers? Have you updated DirectX files since you first ran the game?
Are you getting any error messages? Copy the messages, word for word, and look them up on Google (with quotes around them so Google searches the exact wording) to see if the error messages are related to your video card or DirectX. If you still have an older video card, but updated your video drivers at some point, it's possible that the version of the drivers you used when you first ran the game could solve your crashing problems.
I can't tell from Googling if the DRM on this particular game disc is a type that used "trigger functions." But considering the problems people have with the Steam version, which doesn't have the disc-based DRM, I'm guessing the problems are not caused by the DRM in this case.https://steamcommunity.com/app/342990/discussions/0/537402115097402809/