The issue is that a Blu-Ray playing program must incorporate licensed software, and the license costs money. So any "free" product must have pirated the license, reverse-engineered it (which is technically illegal but fine by me), or talked the Blu-Ray Disc Association into giving a free license.
I Know a tool named UFUSoft Blu-ray Player, which can play blu ray disc or iso files on pc.
UFUSoft Blu ray Player is one easy-to-use player for PC. It can help users enjoy any Blu-ray movie with outstanding and perfect video quality at home. This amazing player can not only play Blu-ray Disc, but also support Blu-ray folder and ISO image files. This Blue ray Player is reliable and expert in playing Blu-ray discs released in different regions and dates trough simple clicks of mouse.
Bluray Player is also capable of playing popular video files. Users can enjoy videos in HD video, AVCHD video, MTS, M2TS, MXF, TS, TRP, MKV, MPEG, FLV, WMV, and MP4, etc. formats.
* Play Blu-ray disc, Blu-ray folder and ISO files.
* Support playing popular video files.
* Bring users 1080P HD video watching experience.
* Play blu-ray movies with DTS HD or Dolby TrueHD Audio.
* Support Windows 8, Windows 7, Windows XP, Win Vista, etc.
I used the Blu-ray media player software called Leawo Blu-ray media player, which can help you play Blu-ray movies on pc smoothly. And It has a clean design but it is powerful. You can download it to have a try.
I'm curently using Mac blu-ray player , things are fine, nothing to complain about. I'm thinking about really getting one considering free-use trials are so short and it took me some real time to find and download online....