Ronald P. Regensburg wrote:
The version in this download is "PlayerPro Player.app", a Mac OS X application package that will turn into a folder when transferred to MacOS 9 in SheepShaver. It will not run there.
Oh, you're right! What's weird is that I tried running it on an emulation, because it didn't work on my Mac, but I just tried it again and now it works? No idea why. Well, anyways, thanks!
Edit: I used the 1.0.0 version on OSX. That one works, the newest doesn't. (in case other people encounter similar issues)