What gives him the right, though?
Justification for DRM
I understand the need for DRM. Apple would never be able to sell us all that great music without the DRM. I have no problem with the DRM. I think it's fair. If I were an artist, I wouldn't want to make it so easy for people to freely distribute my music royalty-free. If a million people like my song enough to own a copy, then I should see a million payments on it. That's fair.
Not as good for Apple as it would seem
A long time ago, Jobs stated that the goal of the iTunes Music Store wasn't to turn a profit, but to market iPods. By providing a easy-to-use, cheap, legal way to sell iPod-compatible music, Apple is able to sell more iPods. It has clearly worked like a charm.
So you're asking "well, if other websites can sell iTunes-compatible DRM protected music, it will sell more iPods too, right?" Well technically yes; You're right. But let me ask you this; what separated the Apple User Experience from most? What sets Mac OS X apart from other OS's, or the iPod apart from other MP3 Players? What makes the iTunes Store so much more popular than any other online music service?
The answer: Approachability. A quick learning curve, ease of use, simplicity, elegance, suave, charm, style. Apple's core marketing gimmick, the reason Apple is still around today, the reason the Apple experience is unique is because Apple maintains strict control over their user's experience, and they make the experience as pleasant as possible. Forr example, it's one of the specific reasons Jobs cited for killing off the Apple-licensed clone machines (back in the day).
Now, we all know Real. I don't know many people who can honestly tell me that they've had an overall easy or pleasant experience with Real. Their software media player is nearly a trojan horse, their tech support is abysmal, their website is obnoxiously hideous, etc. And they're one of the better alternatives. If vendors other than Apple have the ability to peddle DRM-protected music for the iPod, then Apple loses a bit of control over the iPod User Experience.
It might get ugly
Suddenly vendors start changing the rules, right under Apple's nose. Instead of the simple .99 pricing, maybe it's tiered pricing, arbitrarily set up by the folks in charge to make an extra buck, but it confuses/aggrivates the end-user. (and maybe record labels like the better bottom-line & start selling exclusively with Vendor B rather than Apple, thus the Music Store loses marketability). There's no quality-control. Vendors can start ripping less-than perfect copies of the music (or worse, music laced with ads!), market it as "ipod compatible" unsuspecting users buy it & the iPod experience diminishes. In short, Apple loses control.
I've been an Apple user since childhood. I've followed the company closely. I can tell you one thing with certainty. They do not like to lose control of their end-user experience.
DVD Jon may think he's doing us all a favor, and maybe in a shortsighted way he is, but ultimately he's spoiling Apple's marketing strategy & thus risking the iPod's position as the top MP3 Player in market share. The DRM isn't his to license. Hopefully his scheme will be fruitless.