plus: Slash drops out of AC/DC tour. The Wallflowers with Tom Petty. Warner Music cuts. Copy-proof CDs.

According to a press release, "Dave Matthews Band [ tickets ] will be playing an additional show at Scott Stadium in Charlottesville, VA on Sunday, April 22nd along with very special guest Neil Young [ tickets ] & Crazy Horse. ... The public on sale date is Saturday, March 31st at 10:00 AM, EST."

Slash's Snakepit [ tickets ] has dropped out of the AC/DC tour because Slash has pneumonia, Pollstar reported.

The Wallflowers will open the first eight dates of Tom Petty's upcoming tour, Sonicnet reported.

According to the Los Angeles Times, a part of the "giant reorganization" of AOL-Time Warner, the corporate division of "Warner Music is set to close three of 15 U.S. sales offices and eliminate an estimated 615 jobs, including 500 positions belonging to people who have accepted early retirement packages."

Independent country music label Music City is preparing to release the first un-copy-able compact disc, Inside.com reported. The CD, by Charley Pride utilizes a "patent-pending CD-protection software."

According to the article, "For years the digerati have mocked the labels for putting out what are, in effect, perfect rip-ready copies of digital master recordings.''

ZDNet, in reporting that "Facing the prospect of a post-Napster world, tension is starting to build between copyright holders and Internet service providers over who should police other file-swapping networks that are poised to step in as replacements," reminds the reader that that whole thing has yet to be worked out.