I see what you're saying, but I'm on the fence, even for entertainment. All of Shakespeare's works, are a form of entertainment, a base form of entertainment for the rabble even. But they've proven through an accident of history to have huge impacts today.
DRM platforms for scholastic texts for research publications for conference panels exist in abundance, and are only going to become more popular.
I think a reasonable split would be saying that you lose copyright when the original content is no longer active. A book is forever active, so the copyright exists for however long the law currently stipulates - 70 years?
For DRM content, including forced online games, I'm not saying the original creator needs to maintain anything, but if they don't, the copyright should be on an accelerated expiration schedule.
I might be mullified, if electronic creators, have to file the source, the build objects, for electronic things, with a independent library. To follow the normal copyright expiration. That way it would break out of the shell of whatever the DRM enclave is after the 70 years or whatever.
If we examine the mission of the British library, they often talk about they don't know what's going to be critically important in the future, so they have to preserve everything. And I think that's a reasonable position.
