With the hardware installed and ready, you will need the software. For other Macs, you can put one in an external enclosure or purchase a standalone USB Blu-Ray drive (though it will be a bit more expensive). They currently cost between $150 and $250, and will fit in any Mac Pro system.
These can be installed on any Mac and should be recognized by the system as a CD/DVD burner.
The first thing you will need is a blu-ray drive.
Meanwhile, Apple has been focusing on online delivery of HD content with the iTunes store but even though the use of Blu-Ray movies is limited, you can still manage and use blu-ray disks on your Mac. While Apple has been on the blu-ray consortium for a few years, it has been reluctant to pursue blu-ray playback in the Mac OS.
