1) Press the SD CARD button under MODE.
2) Press EASY GUIDE.
3) CURSOR to "2. Erase" and then press ENTER.
4) Use the + and - buttons to select SD Card and then press ENTER
5) Use the + and - buttons to select 1 Track and then press ENTER.
6) Use the + and - buttons to select the file number to be erased.
7) Press ENTER two Times.