portable audio innovations

About Rio

Rio Corporate Headquarters:

20400 Stevens Creek Blvd. Suite 100
Cupertino, CA. 95014

Directions to Headquarters (via Google Maps)


Rio pioneered portable digital audio in 1998 with the launch of the world's first portable MP3 player, the Rio 300. Since then, Rio has become the number one brand in the digital audio player market with a host of award-winning products and dozens of hardware and software patents.

Rio players have set the industry standard by combining powerful features with innovative and intuitive designs. As we work to create future products, we remain committed to one goal: to put the most effective technology in the hands of the people.

About Digital Networks North America, Inc. (DNNA)

Digital Networks North America, Inc. (DNNA) is a wholly owned subsidiary of D&M Holdings U.S., Inc. DNNA is home to the ReplayTV, Rio, and Escient branded products, representing the best in digital entertainment devices. DNNA is developing and building network connected entertainment products. The core technologies developed at DNNA will be introduced across the D&M Holdings line of products in the advanced home theater and networked home entertainment markets. D&M Holdings Inc., parent to D&M Holdings U.S., Inc., is a global, publicly traded company on the Tokyo Stock Exchange. (TSE II: 6735). D&M Holdings brands include Denon, Marantz, Boston Acoustics and McIntosh Laboratory - all industry leaders in the specialist home theater, audio/video consumer electronics, and professional audio markets.