Hi, I have a 5G 30G Video Ipod. I keep all music files on it in Apple Lossless format. I can only listen to about 3 hours of music until the battery is discharged. That's going from fully charged. I only push buttons (thus causing the LED to light up) enough to play two playlists. Is this the expected battery life? Apple talks about getting up to 13 hours. I realize that's a best case scenario with no lights and using a highly compressed music format, but I'm really surprised at how little time between needing charges that I get. Do I have a bad battery maybe? Or is this expected? Thanks for your advice.