Windows Vista crashed on Sony Vaio laptop and iTunes downloads, about 1000 of them for ipod were on computer. Pulled out hard drive and culled the itunes from the drive to another drive and tried to set them up to transfer them to a new iMac. They were all there, resurected and they played in windows media player on my desktop with the hard drive hooked up as an external but wouldn't play sound. I understand there is a process that I must "Deauthorize iTunes" from the old...