SAN FRANCISCO (09/22/2003) - Rio's new line of digital audio players includes both hard-drive and flash devices, as well as one that offers an innovative new storage format. The US$299 Rio Nitrus is among the first players to feature the new Cornice Storage Element, a small device thinner than a flash memory card. The Nitrus has 1.5GB of storage, enough to hold about 375 typical songs, and is smaller than a deck of playing cards. The $399 Rio Karma, meanwhile, presents a 20GB hard drive in a square package that is somewhat thicker than the Nitrus. Both devices support USB 2.0 for quick and easy transfer of music files.