Comment by helterskelter2

Bob Dylan pulled some shenanigans like this. He "released" an album which only had like 100 copies, but in doing so he maintained copyright of all his old work (and let's be real that's all that anyone would ever listen to anyway).

https://www.theguardian.com/music/2013/jan/08/bob-dylan-box-...

I think Japan has an interesting model though for abandonware, at least when the copyright owner can't be tracked down: anyone can sell an old game, but a portion of the income goes into an escrow account in case the copyright holder is located.