Quick Answer: Recommended Formats
Transparent quality, 5x smaller than WAV, maximum CDJ compatibility, fastest library loading.
Lossless quality, larger files, ideal for archival and high-end club systems.
Lossless but not supported on CDJ-2000NXS2 and older players. Use WAV instead.
Rekordbox Supported Audio Formats
Rekordbox 6.x and 7.x support the following audio formats for library management and USB export:
Important: FLAC is supported in the Rekordbox library but cannot be exported to USB for use on CDJ-2000NXS2 and older players. Convert FLAC to WAV or MP3 before exporting to USB.
WAV vs MP3 for Rekordbox: Detailed Comparison
USB Export: How Many Tracks Fit?
For USB-based DJing on CDJ-3000 and XDJ players, file size is critical. Here is how many 5-minute tracks fit on common USB drive sizes:
Our Recommendation: The Two-Library Approach
The best approach for serious Rekordbox DJs is to maintain two libraries:
Keep all original WAV files on an external hard drive. This is your lossless master library — never delete these.
Convert WAV to 320 kbps MP3 for your active Rekordbox library. This is what you export to USB and use for gigs.
Convert WAV to MP3 for Rekordbox
Use our free converter to prepare your tracks for Rekordbox. Select 320 kbps for the best quality-to-size ratio.