RioPort Sponsors Van's Warped Tour Music Festival; Sponsorship Includes Promotional Version of the Rio PMP300 Digital Audio Player and Creation of the ``Warped-RioPort MP3 Zone''

Business Wire, June 24, 1999

SAN JOSE, Calif.--(BUSINESS WIRE)--June 24, 1999--

RioPort, Inc., a wholly owned subsidiary of Diamond Multimedia Systems, Inc. (Nasdaq: DIMD), today announced its role as the official digital media sponsor of the Van's Warped Tour `99, an alternative music and skateboarding festival. The Vans Warped Tour `99 kicks off June 25th in San Antonio, Texas and runs through July 31. The Tour then proceeds to a number of international territories in the Fall. To commemorate this year's Warped Tour, RioPort is offering a customized, camouflage-colored version of the award-winning Rio PMP300 portable digital audio player. Additionally, RioPort is participating in a variety of other promotional activities, including sponsoring of the "Warped-RioPort MP3 Zone," a special content area of the Warped Tour site, featuring downloads from Warped performers. For more details about these promotions, visit the tour's official website at www.warpedtour.com and RioPort's digital audio gateway site, www.RioPort.com. Warpedtour.com is a co-production of the Warped Tour and SonicNet Music Network.

"We love the Warped Tour. Without question, this is the RioPort and Rio crowd. The audience is young, technologically hip people with a passion for music, skateboarding and sports. These are the kids who have created the digital music revolution, and whose active lifestyles require the flexibility of downloadable audio and the portability of shock resistance of the Rio player," said J.D. Heilprin, publisher and general manager of the RioPort.com digital audio gateway site. "Our presence on the Tour is a bonus for both the fans and unsigned bands performing at each Warped event. At each show, we'll not only educate attendees about the benefits of MP3 and other forms of downloadable audio, but also introduce unsigned performers to a medium that makes their music available to a worldwide audience previously beyond their reach. Finally, The Warped Rio PMP300 we've created is truly an original, and should become an instant collector's item."

RioPort's Warped Tour Promotions and Activities

For the four weeks proceeding the Warped Tour, RioPort, SonicNet and additional sponsors have been building excitement for the Tour online with the Warped Tour Warm Up promotion. Each week, www.warpedtour.com and www.rioport.com have featured a free MP3 download from artists appearing on the main stage at the Warped Tour, including Less Than Jake, Pennywise, Royal Crown Revue and Suicidal Tendencies. Fans who downloaded an MP3 track were automatically registered for a chance to win daily and weekly prices from Warm Up sponsors, including clothing, wetsuits and surfboards from O'Neill and RioPort's teal green 64MB Rio PMP300 Special Edition digital audio player.

RioPort will also be sponsoring the Warped-RioPort MP3 Zone, a continually updated digital audio content feature that provides free MP3 downloads from artists performing on the Tour, and focus attention on the unsigned artists performing on a special stage at each Warped show. The RioPort-MP3 Zone will be available online at both the official Warped Tour and RioPort websites.

RioPort will be participating on site at all 35 Warped Tour shows, offering demonstrations of the RioPort.com digital audio gateway and the Warped Tour Rio PMP300. RioPort and SonicNet, the official online sponsors of the tour, will be sharing a tent and providing show attendees with plenty of opportunities to win cool prizes. Contestants in SonicNet's daily Punk Rock Jeopardy contest can win the teal green 64MB Rio PMP300 Special Edition. RioPort will also be giving away five Warped Tour Rio PMP300 players at each show. Additionally, skateboard aficionados should also visit the RioPort tent to register to win a free Grassboard, a cool new all-terrain skateboard, from Rollsurfing Sport.

The Warped Tour Rio PMP300

Warped tour fans interested in purchasing the promotional camouflage Rio PMP300 player can order it from the Warped tour web site and RioPort web sites for an estimated retail price (ERP) of $169.95. Until the end of the year, customers can take advantage of a mail-in $50 rebate, effectively making the price $119.95. For more information about the Rio line of portable digital audio players, including the new Rio 500 announced elsewhere today, visit www.RioPort.com and www.diamondmm.com.

RioPort.com

RioPort.com is a digital audio gateway designed to give audio fans easy access to the best music and spoken word content on the Internet. Located at www.rioport.com the site features over 35 genres of audio content like alternative rock, jazz, comedy and news. RioPort.com is also an excellent source for the latest music news, information about the Rio line of portable digital audio players and weekly contests that feature some of the coolest prizes on the Internet. With new interactive features in development, RioPort.com is evolving into a leading content and community site for the digital fans worldwide.

The Vans Warped Tour `99