Well ... If you can buy it on Amazon it is copyrighted ... If you can't .... you must use your judgement. It's a bit of a grey area, but there are places like archive. org and magnet-mix (I think it is called) where a lot of totally un-copyrighted files are available. A great number of these have found their way onto limewire.

As an example The Grateful Dead allowed the audience to tape most of their shows and these recordings are freely available and the band are totally happy about it provided no money changes hands. Their studio recordings and a number of live releases as well are Copyright.

I hope this points you in the right direction.

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