The following article troubleshoots USB Recorder issues.
- Be sure that the drive is compatible: M-200I: USB Dive Compatibility
- Perform a Speed Test of the USB drive to be sure the drive is compatible. See the "Testing the speed of USB memory" section in the Owner's Manual: https://proav.roland.com/global/products/m-200i/support/
- Format the USB drive in the M-200i: Formatting a USB Drive on the M-200i
- Test with a different, compatible USB drive. A different model and/or brand of USB drive than the one currently being used is recommended.
- Be sure that the M-200i is operating at it's latest version: M-200I: How to Update the M-200i