Automatic bulk re-linking, encrypted master.db supported, external drives handled as 'offline' instead of deleted. Windows + macOS.
You moved your music to a new drive, renamed a folder, or migrated computers — and Rekordbox now shows hundreds of tracks with the dreaded red icon. Rekordbox's own 'Relocate' workflow only lets you fix one file at a time, or one folder at best. And tracks that live on an unplugged external disk? Rekordbox can't tell the difference between 'offline' and 'deleted' — dangerous territory if you're about to commit a big cleanup.
Supported today
Rekordbox · Serato DJ · VirtualDJ (incl. Favorite Folders) on Windows 10+ and macOS (Apple Silicon + Intel).
Rekordbox's built-in Relocate is deliberately conservative because it writes to the live library one file at a time. MLD uses the same native write path but parallelizes the search across multiple folders and drives, shows you the diff before committing, and — crucially — marks tracks on unplugged external drives as *offline* rather than missing, so they never get accidentally cleared when the drive isn't connected. A timestamped master.db backup is created before any write.
MLD disambiguates by file size, duration, and audio fingerprint. You see a preview before any write, and can use the built-in player to hear the candidate track in-app.
Yes — MLD creates a timestamped copy of master.db before writing anything, so rollback is always one file away.
MLD recognizes USB/SSD drives and marks tracks from unplugged disks as offline rather than missing. Nothing gets flagged for deletion just because a drive isn't connected.
MLD repairs the local master.db. If you use Rekordbox Cloud, the changes sync on next launch of Rekordbox.
Rekordbox's tool is one folder at a time; MLD searches many folders and drives simultaneously, uses fingerprinting for disambiguation, and has a built-in player so you can listen to the candidate before committing.
Free tier covers detection and viewing. Lifetime access is $49 — $19 for the first 100 DJs.
