A Blu-ray player is definitely different from a computer Blu-ray drive. The Blu-ray player (or for that matter any Optical Disc player) is essentially designed for reading predefined patterns of content off an optical media. In this case, only video.
The software to make sense of whatever is read is actually a firmware ("kind of" permanent software specifically made for a purpose and hardware configuration).
A computer disc drive (BD/DVD/CD) on the other hand just reads the data in chunks, does error correction as needed. It's up to the software and/or hardware on the PC to derive meaning out of the content being read.
So essentially you'd need a BD ROM (cheapest PC mechanism) to read a Blu-ray disc.
The cheapest one I could find on amazon is an LG UH12LS series BD ROM/DVD Writer