Denon Conversion Utility (DeCU) from Pioneer's Rekordbox to Denon's Engine Prime

Current version 1.41 as of August 8th 2017
Windows users read on! I have a solution for you.
The link to the Free trial is at the end of this text.

The Denon Conversion Utility (DeCU). Converting all cues, loops and playlists from Pioneer's Rekordbox to Engine Prime. 

DeCU can operate from 2 different Rekordbox sources

  • A Rekordbox prepared USB thumb drive

  • The exported Rekordbox collection 

A Rekordbox prepared USB thumbdrive as a source

  • That USB remains fully compatible with Pioneer gear and software

  • There will be no duplicate tracks files on that usb. Engine Prime/the SC5000 will use the same tracks as Pioneer does.

  • The conversion can be done on any random Mac(book) as long as it got Engine Prime installed. In case of emergency when you are at a venue expecting Pioneer gear but running into SC5000's. Just find a MacBook, download the free Engine Prime from Denon's website and run DeCU on your CDJ usb's.
    The converted data and tracks will not become part of the host Mac's Engine Prime collection.

  • The conversion does not convert any playlists on the USB, it will create DeCU specific playlists for easy navigation. The USB becomes fully searchable on the SC5000 and the crates are sortable on BPM, Key etc.

  • DeCU checks the validity of the USB thumb drive for usage on both Denon and Pioneer hardware. It goes beyond checking the format of the drive and will also warn you if it's not an MBR partitioning scheme as well.

The exported Rekordbox collection as a source

  • DeCU will not interferer with any existing cues/loops in Rekordbox, they remain 100% where they are.

  • All playlist and folders are translated to crates in Engine Prime maintaining their nesting structure. Optionally you can convert playlists to Engine Prime playlists which keeps the track order as it is in Rekordbox.

  • The Conversion can be run partially and as often as you like. DeCU will make sure there are no unintended duplicate tracks in your collection.

  • If you don't need the cues and loops you've set in Rekordbox on the Denon platform then processing time is amazingly fast.

  • Before writing to your Engine Prime collection DeCU will automatically create a backup if the previous backup is older then 24hrs. 

At this moment DeCU is your only option to get fully structured playlists inside Engine Prime. And it's the only option to have playlists with tracks in the exact same order as they have in Rekordbox. The iTunes integration of Engine Prime is badly implemented, it often leaves tracks out of playlists and does not support any nesting. I strongly recommend you take your playlists from iTunes to Rekordbox (using Rekordbox's sync manager) and then convert them from Rekordbox to Engine Prime using the Denon Conversion Utility.

Known limitations

  • DeCU uses the Serato database and tagging method as a transmission mechanism for the converted loops and cues. If Denon deceides to share the encryption method for cues and loops with me I can drop this step. Using the option to leave the cues/loops out of the conversion shows you what the speed would be wihtout the Serato detour.

  • Existing Serato collections are moved to a safe location before the conversion starts. DeCU does not interfere with it. However for getting the converted cue/loop data from Rekordbox inside the track DeCU has to write directly to that track's file. Meaning that all modification times/dates of your tracks will change. There is an option to disable writing to the track either to let it keep it's current Serato cue's or none at all.

  • DeCU does not operate on tracks that are wav or have some kind of DRM in them (=bought on iTunes). DeCU has to write to tags of the track's file and wav does not support tagging (officially) and DRM tracks have their metadata locked. Again if I can write to the Engine Prime database directly this is resolved.

DeCU has a free trial version. 
It is 100% identical to the full version, but limited to 1 playlist or 10 tracks max per run. This trial also includes the manual and the other bundled utilities.
download it at:

Follow the DeCU page on Facebook to stay up to date about the latest developments

Video tutorials:
USB source:
XML source:

So you are on Windows?
You'll need the following:

  • A copy of the Denon Conversion Utility (DeCU)

  • External hard drive/ssd/thumb drive 

  • Someone willing to let you use his/her's Mac. It's ok if that Mac got it's own Engine Prime collection. All of the procedure's actions are restricted to the external disk and will not interfere with existing data.

  • Engine Prime (EP) installed on that Mac during the procedure

I show the procedure at:
And it's described in detail in the manual.

After following this procedure that drive will have all your cues, loops and playlists in Engine Prime identical to how they are in your (Windows!) version of Rekordbox.
That drive can be used with Engine Prime on both MacOS and Windows. It can also be plugged directly into a SC5000 and will have the playlists cues etc.
Denon Conversion Utility (DeCU) from Pioneer's Rekordbox to Denon's Engine Prime
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