I, skeptical at first, tried it, now if any of you ever put a Dreamcast disc into any other console that isn't a Dreamcast, you'd get that ***** saying "This is a Dreamcast disc, and should only be put in a Dreamcast System etc." which I did get, but I ignored it, I explored the disc very easily since there were little files that a PC can interact with, and found 10 wallpapers.In the original Dreamcast version of the game, if one were to insert the disk into a PC, special wallpapers hidden on the disk will be available for download. There is also a list of main console Sonic games prior to the release of Sonic Adventure.
I'm wondering if anyone here has ever found them or done this with their disc?
I will upload all these pictures if anyone wants to see them
EDIT: I also found out this works with SA2 for the Dreamcast.