Bought My girls the high school musical cd. Knowing it will end scratched, sticky with sweets or lost I ripped with the intention of making a back up, and letting them have that. All fine until it comes to burning it. Windows Media player keeps asking for a blank CD, even though 1 is in the drive. Click on my computer and it shows the blank CD, yet every time I click burn it asks for a blank cd. Any ideas on how to sort this?