Yes, it was like that. Needed a BD player in a laptop to convert to digital. I didn't even recognize the name of the company who created it. It was during the infancy of digital.
I just found my 25th anniversary blu discs that offered digital copies but it's from some defunct digital system that made you copy the disc from pc or something like that and then u could watch on a smartphone or tablet it says. Wish I could figure out how to convert them to digital.