First update to Rekordbox 7

• Follow the steps

Analyse your tracks

It's important to analyse your tracks in Rekordbox.

So that the CDJ's have the right information to play the tracks.

• Right click on your track, or select all the tracks you want to analyse at once.
• click on analyze track.

Adjust the beatgrid

If you see that the red lines don't start at the beginning of the beat.

• Zoom in
• Set your line at the beginning 
• Click grid edit to snap it to the right place.

How to upload to your USB

• Make a playlist in Rekordbox
• Right click on the folder
• Go over export playlist
• Select your USB

In the settings of the device you can adjust your preferences of what you’d like to see on the controller (ARTIST, BPM, KEY, GENRE). These preferences can be adjusted to your personal style of play. You can either do this beforehand in the program or on the CDJ-3000.