I personally know about it, that's why I rarely buy DRM-protected content in general and I only do so for content I only want to watch / read / hear once or twi

I personally know about it, that's why I rarely buy DRM-protected content in general and I only do so for content I only want to watch / read / hear once or twice. Good movies, good books, good music - these are things for which I want to keep a personal library and so I stay away from DRM. Unfortunately from what I've seen, the public has no idea what DRM is, as the technical details are hard to understand. When buying a DRM-protected copy of something, that copy is not yours, you don't own your copy in any way, your only right is time-limited access to that copy, you know like renting with a public library subscription (it's actually even worse, since when renting something you usually have a contract that guarantees availability for a specific time period, whereas with DRM you never know for how long it will last). And I disagree with your point on advertising - because buying something DRM-protected is really renting, customers should be informed of this.