When I put the disc in the tray and try to play with VLC I get this error,

"Blu-ray error: Your system BD+ decoding library does not work. Missing configuration? Your input can't be opened: VLC is unable to open the MRL 'bluray:///dev/sr0'. Check the log for details."

I installed MakeMKV and tried this,

  1. Insert Blu-Ray Movie
  2. Launch VLC
  3. CTRL+D to enter Disc Menu
  4. Select Blu-Ray Option and check: No Menu option.
  5. Under drive select browse and highlight your drive only on the left side (not the 3 folders on the right)
  6. Select Play from the former "Open Media" screen. (I couldn't find Play from the former "Open Media" screen. This might be what I am missing.)

Please help and thank you much in advance.

1 Answer 1


The answer could be a little late, but may be helpful for other ones. I found it at https://forum.doom9.org/showthread.php?t=170068. I had the same problem, so I just tried it successfully.

You need the file https://forum.doom9.org/attachment.php?attachmentid=13985&d=1390515451. It is called your missing "configuration", but is in fact a set of keys. Places the files from the zip file in the ~/.config/bdplus/vm0 folder. Create if it is not there. (~ is your home path.)

Terminal solution:

wget -O /tmp/vm0.zip 'https://forum.doom9.org/attachment.php?attachmentid=13985&d=1390515451'
mkdir -p ~/.config/bdplus
unzip /tmp/vm0.zip -d ~/.config/bdplus
  • Tried this on 18.04 with no luck.
    – spacer GIF
    Jul 20, 2018 at 17:11
  • Could you give more details?
    – JuliB
    Jul 21, 2018 at 22:21
  • 2
    the given vm0 zip file works fine, but it's very old and doesn't work for newer discs. Dec 2, 2019 at 3:49

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