I'm reading a 1987 Japanese magazine named Hacker and it's adorable. Besides talking about all kinds of bootlegs and erogames, it's got how-to instructions for how to defeat copy protection on PC-88 games. Like, here's how you format a disk and then run this BASIC code to copy the WIZARDRY game disk.
It's on the archive. There's some nudity in it, so beware: