Prior versions (5.4.x, early 5.5.x) had a notorious bug: exporting large playlists (1,500+ tracks) to USB would sometimes corrupt the database, requiring a reformat. The export engine was rewritten for chunked writing, dramatically reducing failures. This alone made 5.6.0 a hero for wedding, mobile, and open-format DJs with massive libraries.
| Hardware | Performance Mode | Export Mode | License Required? | |----------|----------------|-------------|-------------------| | DDJ-1000 | ✅ Full | ✅ USB Export | One-time key | | DDJ-RZX | ✅ Full (Video) | ✅ | Key included | | XDJ-XZ | ✅ (Firmware 1.20) | ✅ | Key needed | | DDJ-SX2 | ✅ Full | ✅ | Key needed | | CDJ-2000 NXS2 | ❌ (No laptop perf) | ✅ (USB sync) | Free | | DDJ-WeGO4 | ✅ Basic | ✅ | Key included |