Before using an SD Card in the TD-50, it should be formatted first. Here's how:
CAUTION: Formatting the SD card permanently erases any and all data that may be on the card. Be sure to backup any important information before formatting.
Begin with the TD-50's power turned off.
1. Insert the SD card into the card slot on the left side panel of the TD-50.
2. Turn on the TD-50's power.
3. Press the SD CARD button.
4. Press the PAGE DOWN button until the FORMAT icon appears.
5. Press F3 (FORMAT). "This will Clear the SD Card" appears in the display.
6. Press F5 (FORMAT).
7. Press the cursor right button to highlight "OK."
8. Press ENTER.