Then you can navigate to 'VLC' directory, and move & copy the libaacs.dll file into it directly. Then it is time to check whether we have done all the things successfully. Launch the VLC Media Player in your computer, open the Blu-Ray disk that was previously failing with the warning “This Blu-Ray Disc needs a library for AACS decoding”. Legal Report Trademark Abuse VideoLAN, VLC, VLC media player and x264 are trademarks internationally registered by the VideoLAN non-profit organization. VideoLAN software is licensed under various open-source licenses: use and distribution are defined by each software license.

• How To Play Blu Ray On Vlc
• Library For Aacs Decoding

Summary :

VLC media player is one of the most popular media players on the Windows platform. However, you may encounter the “this Blu-ray disc needs a library for AACS decoding, and your system does not have it” issue. Now, read this post from MiniTool to find the feasible fix.

AACS Decoding

Dec 17, 2020 Unofficial LibAACS with added custom native Visual Studio project build tools. LibAACS: libaacs is a research project to implement the Advanced Access Content System specification. This research project provides, through an open-source library, a way to understand how the AACS works. ShiftMediaProject/libaacs. Download libvlc.dll below to solve your dll problem. We currently have 7 different versions for this file available. Most of the time, just pick the highest version. Libvlc.dll, File description: VLC media player. Errors related to libvlc.dll can arise for a few different different reasons. Go to 'C:Program FilesVideoLANVLC', then drop your downloaded 'libaacs.dll' file into it. If running 64bit VLC, you will need to find your VLC directory in 'C:Program Files (x86)'.: 3. Now, you can easily launch VLC and use it to play Blu-ray disc on Windows for free. Just need to click on 'Media'.

When trying to play a Blu-ray disc through the VLC media player, some people received the 'this Blu-ray disc requires an AACS decoding library' error message. If the media player cannot find the required library files needed to play the content on the disc, an AACS decoding error will occur. This issue can be found on Windows 7, Windows 8, and Windows 10. Besides, the error message reportedly appeared in multiple VLC versions.

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There are two reasons for the VLC AACS decoding issue. Details are as follows:

KeyDB.cfg file is missing – One of the reasons for the “this Blu-ray disc needs a library for AACS decoding, and your system does not have it” error is that the KeyDB.cfg file is missing. This file is required for libaacs library.

Blu-ray discs are protected by AACS and BD+ technology – Another reason for the issue is that Blu-ray discs are protected by AACS and BD+ technology. Therefore, the standard libbluray library is not enough to play these disks.

Then, let’s see how to fix the “this blu-ray disc needs a library for AACS decoding” issue in the next section.

How to Fix the AACS Decoding Issue

First, you need to check the Windows architecture and the VLC installed on the computer. Regardless of your system and VLC architecture, you need to obtain the same key database (KEYDb.cfg) file. Then, you can start to fix the issue.

Also see: What Is the Difference Between 32 Bit and 64 Bit (x86 vs x64)

How To Play Blu Ray On Vlc

Step 1: Visit this link, go to the Keys database, and click Get File to download the KeyDB.cfg file.

Step 2: Then, go to the AACS Dynamic Library section and click the hyperlink associated with the VLC version you are using.

Step 3: Copy KEYDB.cfg to the clipboard. Then, use File Explorer to navigate.

Step 4: Press the Windows + R keys at the same time to open the Run dialogue box and type ％APPDATA％.

Step 5: In the open location, create a new folder (right-click> New> Folder) and name it aacs.

Step 6: Open the newly created aacs folder and paste the KEYDB.cfg file. Navigate to your download folder and copy the libaacs.dll file to the clipboard.

Library For Aacs Decoding

Step 7: Use File Explorer to navigate to the location where VLC is installed and paste it here.

After that, you can open the VLC media player to check if the “this Blu-ray disc needs a library for AACS decoding, and your system does not have it” issue has been fixed.

Final Words

To sum up, this post has listed a method to get rid of the “this blu-ray disc needs a library for AACS decoding, and your system does not have it” issue. So you can try the method if you are troubled with this error.

AACS Decoding FAQ