Alex Mindlin writes:
As a group, fans of digital radio do not listen to traditional radio less than everyone else. In fact, they listen to slightly more, according to a study recently released by Arbitron and Edison Media Research. ...
Link: New York Times.
Edison's 25-pp summary report and press release can be found at, The Infinite Dial 2007: Radio's Digital Platforms - Online, Satellite, HD Radio and Podcasting. Important reading. Link: Edison Media Research. --Dennis