Hold hard, me hearty!
Sorry to be the bearer of bad tidings, but copyright is a very complex affair - I know 'cos I come into contact with copyright issues re. music,very regularly at work.
Within a simple CD there are several copyrights in effect at the same time:
1. The copyright of the composers, lyricists and music publishers of the music used in the cd.
2. The copyright of the performer(s) on the cd.
3. ( The Killer ) the mechanical copyright of the actual cd itself.
All copyrights have time limits, after which the copyright passes into the Public Domain.
e.g Glenn Miller - died 1944. His arrangements and compositions remain copyright until 2014 ( 70 years after his death - the current standard length of copyright )
This applies even to music recorded in 1936 ( 71 years ago ) it's the date of death of the copyright owner which matters.
Mechanical copyright tends to last for 50 years after the first release of a recording ( 78, LP, Cd ) - That's why, in the UK, Paul McCartney, Cliff Richard and lots of other artists from the early 60s are paying lawyers vast amounts of money to try to protect their early recordings - e.g. as the law stands, on June 2nd 2017 anyone will be able release a copy of Sgt. Pepper's Lonely Hears Club Band for profit, or otherwise without permission or the payment of licensing fees.
Some American radio programmes were not protected by copyright when the US law changed in the late 70s and so are in the Public Domain. HOWEVER, even Cds containing nothing but such PD recordings are subject to the mechanical copyright on the CD itself and may not be copied, or distributed without the permission of those who produced and released the CD. Since Cds weren't on sale before 1983, it will be 2033 , at the earliest before any music on CD will be out of mechanical copyright.
I suggest you look at the release / publication year of your Cds and add 50.
If I may, a word to the moderators - Since the gramophone and particularly the radio in SH4 are causing a great deal of interest and activity, it might be a good idea to post a comprehensive guide to copyright as a sticky?
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