If I buy a CD, burn it to my computer and then sell that CD, do I have to delete the MP3 copy on my computer? The law says yes; I "owned" the music while I pos

If I buy a CD, burn it to my computer and then sell that CD, do I have to delete the MP3 copy on my computer? The law says yes; I "owned" the music while I possessed the CD. When I sold the CD I gave my ownership and my copies are illegal. I'd bet that 99% of people would keep the copy on their computer though. Until this perception is changed, the author's point doesn't really matter. Because I'm paying so little for Spotify and because of it's very history of struggle coming to the U.S., I know it could be temporal. As is pretty much everything, including the physical media which can also degrade. Maybe services like Spotify will change that perception and the consumer and the industry will meet in the middle with a cheap subscription price. But unless all of the methods of illegally accessing music are closed, I don't think that'll happen.