Anyhow, I read the FAQ and a few other pages on numly.com, and I don’t see how it would benefit me as either a content provider or a content purchaser.

Suppose I buy an music file protected by a Numly number. What am I going to use to play it on Linux? If an open source music player program will play it, how will the Numly number prevent an unauthorized person from playing a copy of the same music file?

I find the whole idea of DRM to be obnoxious, even if it were to be done in a way that didn’t inconvenience me very much. I buy a lot of software, DVDs, CDs, and books. The DRM on DVDs is obnoxious, and I wouldn’t have started buying them if I hadn’t been convinced that the DRM would get broken so that I actually could watch the DVDs on my PC running open source software. I should be able to access the content using any software I like. There is no good reason why I should be forced to use only the software the publishers approve of, on only the platforms upon which they deign to release that software (i.e., Windows, and maybe MacOS).

I call this good drm. In the future, there is no reason not to be able to sell your purchased copy of a digital song to someone else by transfering your license. Right?