Recorded a CD late last night with the guy I'm starting to work with - just him and his guitar, to give me and whomever else he gets in time to work on our parts. Except that we forgot to finalise it. "Nuts!" So now I've got a CD with music on that I have to play along to, except it doesn't work...... I tried putting it in my computer (iMac) to finalise it so it would work, all the Mac gave was the "prepare disc" screen. What can I do to get this disc to play, on my hifi?