> Compilers don’t create a new copyright the output is covered as a derivative work.

A derivative work is a separate work that, considered apart from the one it is derived from, separately has the required creative input to be a copyrightable work, and it does, in fact, have a separate copyright from the original (creating derivative works is an exclusive, but licensable, right of the copyright holder of the original, but the copyright of a derivative is separate.)

I don’t know if that distinction was intended as a limitation, “sound recording” is listed as a derivative work in the statute. It also clarifies that “Copies” are material objects, other than phonorecords

So, mechanical transformation such as rendering a webpage at 150% scale is seemingly a derivative work even if there isn’t any creativity in the process.