Hi guys, I tried turning my macbook on and after being stuck at the white screen for a couple minutes a folder started flashing. I have tried resetting the PRAM, and also starting the disk utility through the recovery disk, however when I launch the disk utility it doesnt show the harddrive in the devices and only lists the cd/dvd drive. I have about 10-15 gigs of music that I need on my laptop, is there any way to recover that, and if so how? I dont want to reinstall the OS because I will lose all my data. Thanks for your help in advance.