Although QuickTime supports a host of video and audio formats as input, Blu-ray is not in the list.
QuickTime media player is a free Apple application that's preinstalled on Mac machine when it came out of the box, and it's available to download in Windows platform as well. Looking for a Blu-ray playing software for disc playback on computer, check the link provided.
How to Play Blu-Ray in Quicktime on Mac & PC Computer