Free 4K Blu-ray Player for Windows is officially authorized Blu-ray player software for Windows operating systems around the world. It can play all commercial and non-commercial Blu-ray discs, folders and ISO files in different regions on Windows computers. Besides playing Blu-ray movies, it also supports DVD and other video and audio formats, including 4K UHD videos, 1080p HD videos, MOV, AVI, MOV, FLV, WMV, MP4, MPEG, RMVB, MP3, WMA, AAC, AC3 and more. With a simple and clear design, the versatile Free Blu-ray Player offers different screen modes like full, half, normal, double for you to choose. Besides, this Blu-ray Player enables you to choose your needed audio track and subtitle track as you like.