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Vinyl records outsell CDs for the second year running
(www.theverge.com)
This is a most excellent place for technology news and articles.
To make the claim 80% of population has it you have to have the numbers, since South Korea doesn't have it, a lot of African countries (just going down the list, Algeria, Angola, Benin, etc) don't have it
It looks like half of the world doesn't have iTunes music purchases