From what I've seen, most DJ's just get a copy of SAM Broadcaster from their host stations for free.
If that is the case, then that station must be bringing in a lot of money, as the last I've check the price on Sam Broadcaster is around $280.00 and that is with a $20 discount.
With my shoutcast server, and I'm sure others are this way too, the station has a Master Password to log in that with over ride the DJ's log in password. So if there is a problem, you can pull the plug.
I agree that option is there.
This would be as simple as sending the commercial audio files to each DJ along with a spotlog
I agree with that as well. However, unless you are actually monitoring your station, you have no assurance that the DJ will run them. This is the same reason that LIVE365 won't let their broadcasters run the commercials that LIVE365 has.
I hate to tell you this, but most Internet Stations could give two sh*ts about DMCA rules. As for my butt being in a sling,...BFD! What are they going to do, take away my birthday? And And how does one send meta data if you are playing a CD? Gee, are they going to put me in jail for a song not being tagged?
I know how Internet Stations owners feel about DMCA rules, I'm one of them. As for them taking away your birthday, they just let you think you still have your birthday.

As for sending meta data from a CD, there are ways to do that, but it would be easier to rip the CD
Fine?! What fine? Fine me all you want. Good luck on collecting when the person running things has no assets in their own name.
I have no desire fine you. I'm a broadcaster, not the maker or enforcer of the rules.
And one other thing as long as I'm on a rant,...if I'm paying ASCAP, SESAC and BMI, that should cover the bases. SOUNDEXCHANGE! Please,..give me f***ing break! They can lick my....
Yes, you would think that paying ASCAP, SESAC and BMI would be enough for any broadcaster to make payments on. Unfortunately, SoundExchange has been assigned to collect the disproportionately high royalty rates on Internet radio as compared to satellite and terrestrial services, leading some Internet broadcasters to cease operations.
I should point out here, I didn't make the rules you are complaining about. As for the questions you had about the enforcement and penalties, you may want to consult an attorney.