Can I play a .mkv file on a blu-ray player?

[XeNo]

I tried to play a .mkv file in my blu-ray player and it worked well, I was able to activete subtitles and different audio tracks while playing.
Then I tried with another video (in the same container) and it didn't work, the player just said "video format not supported (probably I'm not translating it perfectly), in the last two days I tried to learn something about audio and video formats and even containers, but I think I still know less than anybody here.
Anyways, this is my idea about this problem:
Maybe one of the video formats in the files I played is good for blu-ray player an the other isn't.

Here I write the two video formats and other infos:

The one which didn't work:
Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Codec ID : V_MPEGH/ISO/HEVC
Duration : 2h 15mn
Bit rate : 1 877 Kbps
Width : 1 280 pixels
Height : 536 pixels
Display aspect ratio : 2.40:1
Frame rate mode : Constant
Frame rate : 23.976 fps
Bits/(Pixel*Frame) : 0.114
Stream size : 1.78 GiB (58%)
Title : V ideo H.265 (Encoded by ZMachine)
Default : Yes
Forced : No

The one that did work:

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 1h 53mn
Bit rate : 5 000 Kbps
Width : 1 920 pixels
Height : 800 pixels
Display aspect ratio : 2.40:1
Frame rate mode : Constant
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.136
Stream size : 3.87 GiB (83%)
Writing library : x264 core 142 r2479


IS THERE A REASON FOR THAT? DEEP THANKS

[hello_hello]

Many Bluray players support AVC (h264) video in MKVs (it's a format used for Bluray video) but not HEVC (h265).
HEVC is relatively new and not very well supported by hardware players yet (support is almost non-existent).

https://en.wikipedia.org/wiki/H.264/MPEG-4_AVC

https://en.wikipedia.org/wiki/High_Efficiency_Video_Coding

[XeNo]

Thank you so much so I can play h264/avc files on my player?

[videobruger]

Yes. You can convert HEVC to AVC with HandBrake / Vidcoder.

[XeNo]

Ty for quick answer.