Yamaha DTX-PRO Reference Manual page 79

MENU Button
5.
Save the file.
5-1.
Press the "SAVE" button ([F3]).
The Save confirmation screen appears.
5-2.
If you wish to save the file, press the "YES" button ([F1]) If you wish to save under a different name, press the "NO" button ([F3])
and the screen returns to step 2.
If a file with the same file name already exists, the overwrite confirmation screen, as shown below, appears.
If you wish to save the file under a different name, press the "NO" button ([F3]) and the screen returns to step 2.
6.
Press the "YES" button ([F1]) to save.
A message shown below appears during the Save process.
Pressing the "CANCEL" button ([F3]) during the Save process stops the process and the screen returns to step 2.
Do not disconnect the USB flash drive from the [USB TO DEVICE] terminal or turn off the power to the PRO series modules while
the file is being saved. Doing so may cause the PRO series modules to malfunction, or corrupt memory in the USB flash drive.
"Completed." appears when the Save process is complete, and the screen returns to step 2.
DTX-PRO DTX-PROX Reference Manual 79