Try to play the Blu-ray disc on VLC or other players, but an error window pops up and reminds you of some lines, like “the VLC needs a library for AACS to decode the Blu-ray disc” or any other lack of decrypt package, which lead to the incompatibility of Blu-ray discs and your player.

Then you found libbluray, you can tell from its name that it is a library file for Blu-ray content, which makes you believe you can play Blu-ray with it installed on your player. And, you just failed, or maybe worse, you even have no clue about how to install the package.

So can libbluray help you to get your VLC or MPlayer play Blu-ray?

The answer is NO. Libbluray is a built-in library in the VLC, which is made of navigation, playlist parsing, menus, and BD-J, hence you don’t need to install it to your VLC.

But why is VLC unable to play your Blu-ray disc? That is because most commercial Blu-ray discs are protected by AACS or BD+, while with Libbluray you can only play Blu-ray contents without protection, like some homemade Blu-ray discs.

Therefore, you will need to install the other two files (libaacs file and keydb.cfg) to VLC and make it support playing protected Blu-ray discs.

How to Put a Library File and an Encrypted File in VLC

Libaacs is a file related to decoding Blu-ray media, after adding it to the VLC folder, VLC player will be able to decode the Blu-ray disc.

To smoothly play most Blu-ray discs, you will also need to add an encrypted file (KEYDB.cfg), because most commercial Blu-ray discs are protected by DRM.

Note: This method will take you some time, if you want to watch the Blu-ray disc on your computer, Aiseesoft Blu-ray Player will satisfy you.

Step 1: Download the AACS to VLC’s Location

Open VLC Blu-ray on a browser, then you will find AACS Dynamic Library. Download the files, based on your system type.

Tip: Don’t know if the Windows on your computer is 32-bit or 64bit?

Click the search icon on the taskbar, type “About”, and select About Your PC. Under the Device specifications, you will find System Type, and it will tell whether it’s 32-bit or 64-bit.

After that, transfer the file to the installation folder.

The installation folder of VLC on Windows:

*32-bit: C:\Program Files (x86)\VideoLAN\VLC\plugins

*64-bit: C:\Program Files\VideoLAN\VLC\plugins

Location of VLC on Windows

The installation folder of VLC on Mac: /usr/local/lib/directory (if you don’t find directory, create it)

Step 2: Download KEYDB.cfg to A Specific Folder

Back to the browser and download the KEYDB.cfg file from VLC Blu-ray to your computer, then move the files to aacs folder.

The AACS folder on Windows: C:\Users\[your name]\Roaming\aacs\

The AACS folder on Mac: ~/Library/Preferences/aacs/ (create it if it does not exist)

The KEYDB's Path on Mac

Step 3: Play the Blu-ray Disc with VLC

Make sure you have inserted the disc and the driver is connected to your computer.

Open VLC media player, select Media > Open Disc…, choose Blu-ray, and click on the Play button. Then the Blu-ray disc will play in a second.

If this method is not working on your PC/Mac, you can report the issue or directly play your Blu-ray disc with another free 4K Blu-ray player – Aiseesoft Blu-ray player.

Alternative: Play Blu-ray Discs with Professional Aiseesoft Blu-ray Player

Aiseesoft Blu-ray player is a professional media player, which is originally compatible with Blu-ray discs (including commercial one), folder and ISO. So, you can skip to enhance the VLC.

Furthermore, it will offer a high resolution of picture and sound. For example, it supports playing 4K/1080p/720p videos and lossless audio.

Besides, it will fastly load your Blu-ray disc. When it connects to the internet, it can be even faster.

With a high-quality monitor and speaker, you can enjoy the best watching ever on your computer.

Step 1: Download the Aiseesoft Blu-ray Player

Step 2: Insert the Blu-ray Disc into the Drive

Make sure the drive and computer are well connected.

Step 3: Play the Blu-ray Disc with Aiseesoft Blu-ray player

Open the program, click on Open Disc. Then a popping window will show, navigate it to the Blu-ray disc.

Aiseesoft Blu-ray Player Interface

Convert the Blu-ray Media to a VLC Original Compatible Video File

If you have been used to playing video on VLC, you can rip and convert the Blu-ray media to video files, such as MP4, MKV, etc. Most formats are playable on VLC with Leawo Blu-ray ripper.

Leawo Blu-ray Ripper is a ripping software and it is able to help you remove the DRM from Blu-ray discs. Also, you can save those funny clips from Blu-ray discs to your mobile devices.

During conversion, it will preserve the quality of the Image and Sound of the movie, so you don’t need to worry about the quality being too weak. Plus, it will keep the audio track and subtitles.

Leawo Prof Media Interface


Now you know why you failed to install libbluray and how to fix the unplayable error with 2 methods. Like installing other 2 files to make the VLC support commercial Blu-ray discs, or directly play the disc with Aiseesoft Blu-ray player.

What’s more, Leawo Blu-ray ripper will help you convert the movie to a video file, then you can instantly play it on VLC.

As soon as the problem is solved, you will be able to enjoy the movie on your computer.