Vinyl to Ipods

Awesome graph!

thanks. i actually made a number of notes on this one at e-huned.com/2007/01/17/technology-obsolescence-curves-are-cool/

This seems like another manifestation of the 36% rule, I've made a few notes about this: http://adelino.typepad.com/...

just for clarification, the drop off of ipods at the end of the graph is due to incomplete data, not lagging ipod sales...

This one is clearer with the relative values. Each of the new media begins its upswing before the decline of the previous media with the exception of iPods. The claim by the music industry that file sharing is reducing sales isn't supported by this graph assuming that digital music basically starts at the same time as the iPod. Is it participating in the decline of CD sales after the start of the decline. Maybe. A reduction in the number of replacement sales is probably more likely the reason for the beginning of the decline.

Anon - digital music probably led ipods by several years. To do this properly you'd need to graph turntables vs. cassette decks vs. cd players vs. ipods. Otherwise it's apples and oranges.