8 Reasons your USB isn't working with your CDJs or Controller
8 Reasons your USB isn't working with your CDJs or Controller Common Causes and Fixes 1. Wrong Format Problem : Most CDJs (especially Pioneer models) require USBs to be formatted in FAT32 or exFAT . If your USB is formatted in NTFS or another file system, the CDJ won’t recognise it. Fix : Back up your data. Reformat the USB to FAT32 (for universal compatibility) or exFAT (for newer CDJs like CDJ-3000). Use your computer's built-in formatting tool or a dedicated app like Rufus or Disk Utility (Mac). 2. Incorrect File Structure Problem : CDJs need tracks to be organised properly, often using RekordBox to analyse and export them. Dropping random files onto the USB might cause issues. Fix : Use RekordBox to prepare your playlists. Export your tracks properly to the USB via RekordBox to create the correct folder structure. 3. Corrupt USB or Files Problem : Corrupted files or a faulty USB can prevent the CDJ from loading it. Fix : Test the USB on another device (e....