Makemkv Keydb 'link' -
Have a tip for extracting keys faster? Found a broken link to the KEYDB file? Let us know in the comments below (or on the MakeMKV forums).
However, the existence of the MakeMKV and KeyDB ecosystem sits at a complex intersection of legal and ethical debates. In many jurisdictions, such as the United States under the Digital Millennium Copyright Act (DMCA), circumventing digital rights management (DRM) is technically prohibited, even for personal backup purposes. Conversely, proponents of "Fair Use" argue that consumers have an inherent right to format-shift their purchased media to ensure longevity and compatibility with home media servers like Plex or Jellyfin. The community-driven nature of KeyDB reflects a grassroots effort to preserve media in an era where digital storefronts can revoke access to "purchased" content at any time.
MakeMKV does not auto-detect KEYDB; you must place it in the correct hidden folder. makemkv keydb
When these three work together, you can back up your entire 4K library to a Plex or Jellyfin server with zero quality loss.
When a new disc is released with an updated MKB (revoking old keys), the existing keys in the KeyDB fail. The community (often congregating on forums such as Doom9 or Reddit) engages in a process to find a new "Processing Key." Have a tip for extracting keys faster
AACS incorporates a mechanism to revoke compromised keys. If a specific software player (e.g., PowerDVD, WinDVD) is found to have its keys extracted and shared, the AACS Licensing Authority (AACS LA) can release new discs with a "Media Key Block" (MKB) that invalidates those keys. This means a static set of keys eventually becomes obsolete. Consequently, a dynamic database like KeyDB.cfg is required to store newly discovered keys as older ones are revoked.
To understand the necessity of the KeyDB, one must first understand the security model of AACS (Advanced Access Content System). However, the existence of the MakeMKV and KeyDB
is a community-maintained plain-text database file that contains thousands of Volume Unique Keys (VUKs) for Blu-ray and UHD discs. Think of it as a massive digital lockbox.