Since EMI ditched the DRM on iTunes it has seen sales of Pink Floyd's Dark Side of the Moon increase by between 272 and 350 percent.
It is too early to tell if this is just a temporary rise as punters replace their old DRM infected tracks with those which are protection free.
However it does look like punters have given the record labels the thumbs up for DRM free music.
According to Bloomberg, digital sales for other DRM free music increased by between 17 to 24 per cent. OK Go's Oh No increased 77 per cent. Coldplay's A Rush Of Blood To The Head jumped 115 per cent.
Sadly CD sales still are dropping down the toilet.
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