It helps when you are given a CD to listen to to actually have it formatted as a CD. It took us several different CD players and borrowing my neighbors laptop before we (my husband, that is) realized that it had been given to us in mp4 format! Once we figured that out, we got it to play OK in the computer. It’s now been ‘translated’ to a regular audio file so I can listen to it in the car! Yeah for training!