Here's how to access the SD card info in the TD-17 which shows the backups you have created as well as available memory on the SD card.
1. Insert the SD Card into the TD-17's card slot.
2. Press the SETUP button.
3. Press the cursor down button to highlight "SD Card," and then press the function 3 (F3) button (ENTER). The SD CARD INFO menu appears showing the contents.
Press the DRUM KIT button when you're finished.
Note: If "No SD Card" is shown, that means the SD card is either not inserted completely, or it has not been previously formatted or used in the TD-17.