iTunes tagging comes to HD Radio

Joining Polk and JBL, Sony, Alpine and JVC have unveiled HD Radio-equipped units that take advantage of the data stream that accompanies the audio on an HD station.

With an iPod connected, consumers have the ability to "tag" a song being played for review at a later time. When the iPod is connected to a computer, all tagged tracks are highlighted for a more streamlined purchasing experience.

Of course, broadcasters are required to stream this information before it can be available to the end user. Those on board include CBS Radio, Clear Channel, Cumulus, Cox, Entercom, and Greater Media.