Rio is second to apple in retail sales of MP3 players:
“In May, Rio ranked second to Apple in the MP3 player market, holding a 14.6 percent share compared to Apple’s 39.2 percent, according to the latest figures available from The NPD Group, which tracks sales at retail stores.”
Rio challenges the mini-iPod with the new Rio Carbon:
“The Rio Carbon, shaped like a slim wedge and weighing 3.2 ounces, uses Seagate Technology’s new 1-inch, 5-gigabyte hard drive, and touts up to 20 hours of playback time on a rechargeable battery. It will cost $249 and be available in late August, said Dan Torres, Rio’s vice president of product marketing.”
I don’t think these NPD Group stats cover direct sales, such as the Dell DJ.
Last year, IDC said, “worldwide portable MP3 player unit shipments will grow from 11.62 million units in 2002 to 36.64 million units in 2007.”