You don't forego listening to your cd's when you move to streaming, rip them to streamer internal drives or NAS. You then back up those files via something like RAID, so two drive NAS, second drive is copy of first drive. And then I have a copy of the copy via usb drive, so three drives would have to fail for me to lose my over 3.5k rips. Another possible advantage of this is cd rips may have better sound quality vs cd's with transport, mine did with the subsequent transports used after my ML No. 37 died.