I have the latest iPod Shuffle and only listen to old time radio recordings. About every 10 files it will finish one and at the next one will not start. The buttons do nothing. I must turn it off and wait about 15 seconds in order to have it work again. It then restarts at the beginning of the previous file. If I skip forward to the next file the error happens again. The only way out of it is to skip forward twice and skip the file. I have listened to the "bad" files online and also on a Sony MP3 player with no problems.