I’d give CD’s a much shorter life span. If anything, with all the video being taken everywhere, artists will probably be putting out Blu-Ray disks which include the album to give consumers more for their buck. It would be a step up from having only the album and a seperate promo DVD like a lot are doing now.

As far as CD’s, we still have good old record stores and physical records are becoming collectors so I assume the same would happen to CD’s. They might even be more attractive to buyers if artists and labels start replacing them with another media and decrease the amount of copies floating around to only the true fans who are the same people buying the band’s underwear with their logo. Man, a lot of talk about underwear in this comment … At least it’s one thing that may last over 50 years, hehe.