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How to · Engine DJ

Set up a new laptop for Engine DJ.

Copy the Engine Library folder out of your Music folder on the old machine to the same path on the new one, then copy your audio files to the identical path they had before. It only works if the username on both computers is exactly the same and the files land where the database expects them, otherwise Engine DJ shows the tracks in red as missing.

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A Vibes library table showing tracks with BPM, key, energy and vibe columns after an import

When the folder copy does not take, rebuild the collection in Vibes and export it back into Engine DJ.

Move your library to a new laptop in Engine DJ, step by step.

Engine DJ keeps a database folder on your computer and your audio somewhere else, and it expects both at the same paths every time. The move is two copies and one re-export.

01

Back up the Engine Library before you touch anything

In Engine DJ, open Preferences, go to the Library tab, and find the Library Backup section under System. Click Backup and leave the app open until it finishes. Engine prompts a backup every seven days when you quit unless you already made one. Note that this covers your computer's database only: databases living on external drives are not included.

02

Get a drive big enough and format it right

You need an external drive with room for the whole collection. Engine DJ reads exFAT and FAT32, and Denon recommends exFAT for drives of 1 TB and up. Formatting erases everything on the drive, so move anything you care about off it first. Engine also supports APFS, HFS and HFS+ on macOS and NTFS on Windows, but exFAT is the safe pick if the drive will ever meet a player.

03

Copy the Engine Library folder across

On Windows the folder is at C:\Users\[Your Username]\Music\Engine Library. On macOS it is Macintosh HD > Music > Engine Library. Copy that whole folder to the drive, then copy it to the same path on the new computer. The usernames on both machines have to be exactly the same, or the paths inside the database stop resolving.

04

Copy your music files to the identical path

The Engine Library folder holds metadata, not audio. Copy the actual music files over separately and put them at the same path they occupied before. If they sat in C:\Users\user\Music on the old laptop, they belong in C:\Users\user\Music on the new one. Same rule on a Mac: same volume name, same folder names, same capitalization.

05

Open Engine DJ and clear any red tracks

Install Engine DJ Desktop on the new machine and open your collection. A track shown in red means its file path is lost or corrupt. Right-click it and use the relocate options, which include a manual and an automated route. On macOS relocation is case-sensitive, and a file with several possible matches stays missing until you point at the right one yourself.

06

Run Sync Manager and re-export your drive

With the collection healthy on the new laptop, open Sync Manager and re-export your existing playlists to the drive you use with your Engine hardware. Eject the drive properly afterward. Force-ejecting during an import or a sync is one of the listed causes of a corrupt Engine database, and a corrupt drive database is a rebuild you do not want at a gig.

The catch

This whole method rests on the two machines matching. Denon states that moving between Windows and macOS in either direction will not be as seamless as a like-for-like move, and suggests a migration program such as Migration Assistant or simply rebuilding the Engine Library on the new computer. Plan for a rebuild rather than assuming the copy will take.

DJ Software
Rekordbox
Rekordbox
Import XML or Database
Serato
Serato
Import Library Database
Traktor
Traktor
Import NML Collection
Engine
Engine
Import Engine Database
File System
Local Folder
Scan directory
Audio Files
Select files

The faster way

Rebuild the collection from the files, not from memory.

Vibes reads your Engine DJ collection with Smart Import, which detects the app for you, or plain folders if the database did not survive the trip. It then analyzes every file locally for BPM, key and an energy curve, so nothing depends on the old laptop still working. When the new machine is ready, export your playlists and vibes back out as a folder tree that Engine DJ imports by drag and drop, subfolders included.

See how it works
Import Wizard reads your Engine DJ collection, or just your music folders when the database is gone
Local analysis rebuilds BPM, key in Camelot, musical or Open Key display, and an energy curve for every file
The duplicate finder catches the second copy of every track a messy migration leaves behind
Export playlists and vibes back to Engine DJ as a folder tree, with optional Camelot key or BPM sub-folders

Organize in Vibes, export to Engine DJ.

Your playlists, tags, ratings, and cue points travel back to the gear you play on, so nothing you do in Vibes is locked away.

Track 001 by Artist A

Track 001

Artist A

128
3A
Track 002 by Artist B

Track 002

Artist B

124
5B
Track 003 by Artist C

Track 003

Artist C

132
8A
Vibes App
Playlists
Vibes
Mood
Aggressive
Euphoric
Melancholic
Mysterious
Peaceful
Playful
Tense
Function
Arrangement
Sets
Club Night 12/28
NYE Closing Set
Rooftop 01/04

Frequently asked questions

The honest answers, including the trade-offs.

Copy the Engine Library folder from your Music folder onto an external drive formatted to exFAT or FAT32, then copy it to the same path on the new machine. Copy your audio files to the identical path as well. Open Engine DJ, relocate any red tracks, then run Sync Manager and re-export your playlists to the drive you actually play from.
Format the drive to exFAT, which Denon recommends for 1 TB and larger, or FAT32. Formatting wipes the drive, so clear it first. Then copy your whole music folder across in one go and keep the folder structure intact, since Engine DJ tracks files by path. Copy the Engine Library folder separately, and eject the drive properly. There is more on this in backing up a DJ library.
Yes, and for a DJ library that is often the cleaner route. A network share, a direct cable, or pulling the old drive into an external enclosure all work, because Engine DJ does not care how the bytes arrive. What it cares about is where they land. The Engine Library folder and your audio have to end up at the same paths they had before, or the collection opens full of missing tracks.
Handle the operating system and your documents with whatever migration route you prefer, then do the DJ library by hand. Engine DJ has no migration wizard: you install Engine DJ Desktop, copy the Engine Library folder and the music into place, and re-export your drive. Do the DJ part last, once the username and folder layout on the new machine are settled and will not change again.
Whatever Windows transfer route you use covers documents and music well enough. It does not cover the Engine Library folder in any useful way, because the path has to match exactly, down to the account name. Create the account on the new PC with the same username as the old one, then copy C:\Users\[Your Username]\Music\Engine Library across yourself and put the audio back at its old path.
For a DJ, set the user account name to match the old machine before you install anything. Engine DJ's own instructions insist the usernames on both computers are exactly the same, and getting that wrong means redoing the copy later. After that, install Engine DJ Desktop, copy the Engine Library folder and the music into place, and only then plug in your player drive.
On macOS it sits at Macintosh HD > Music > Engine Library. On Windows the equivalent is C:\Users\[Your Username]\Music\Engine Library. That folder holds the database with the metadata for your tracks: cues, playlists, grids, analysis. It does not hold the audio. Copying it on its own gets you a collection full of playlists pointing at files that are not on the new machine yet.
macOS has not given Engine DJ permission to reach your drives yet. Open System Preferences, choose Security & Privacy, click the Privacy tab, and select Files and Folders. Find Engine DJ in the list, click the padlock and enter your password, then tick Removable Volumes and Desktop Folder. Lock it again and restart Engine DJ. Sync Manager and your external drives should both be available.
Red means the file path is lost or corrupt, which is exactly what happens when the audio did not land on the identical path. Right-click a red track and use the relocate options; Engine DJ offers a manual one and an automated one. On Mac the match is case-sensitive, and a file with several possible matches stays missing until you point at the right one by hand.
Not by syncing: Vibes has no cloud sync and cannot push a collection from one machine to another. What it does is read your Engine DJ collection or your plain music folders, analyze BPM, key and energy locally, and export playlists and vibes back into Engine DJ as a folder tree. That turns a rebuild on the new laptop into an afternoon. Download Vibes or see what it does with a DJ library.

From a Vibes customer

The import worked perfectly. Have created several sets now and my life is so much easier
Danny

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Methodology

How we keep this honest.

Verified against the app

Every step is checked against the current version of Engine DJ.

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We make Vibes. We show the native way first and honestly, then where Vibes genuinely helps, and we say when it does not.

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Kept current

Last reviewed June 2026.

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