after much frustration, I found that I could connect with my apple MacBook Pro by holding down the center key on the clip (the clip was on hold) and then connecting the USB cable to the computer and clip device. The apple could see the entire file. … next, as one of the forum folks indicated, I could use the disk utility on macintosh to erase the device but selecting the dos option as the default option. Then I ejected the clip by dragging the icon to the trash. After this I turned the clip to on and everything worked perfectly! … thanks to the forum folks…!! It would be good if there were a better search enjine on the problems.