Legacy Engine databases are now incompatible as of Engine version 4.0 and higher. These databases are used in Engine DJ and Engine OS versions up to 1.6.1.


To update a legacy Engine Library to use with version 4.0.0, follow the steps below:

  1. Download and install Engine DJ 3.4.0.
  2. Launch Engine DJ 3.4.0 and connect any drives containing a Legacy Engine Database.
  3. Migration of databases should occur automatically.

In some instances, a new (blank) database may have been created. If the steps above did not work please try the following:

  1. Make sure Engine DJ is closed
  2. Navigate to the drive that contains your Engine Library folder
  3. Delete the "Database2" folder
  4. Open Engine DJ 3.4.0

For further assistance, please open a support ticket