Operation Manual

Page 20
Digital audio terms
USB
Universal Serial Bus (USB) is the external bus standard that supports data transfer rates of 12 Mbps
(12 million bits per second). The Rio uses USB to communicate with the computer. A single USB port
may be used to connect up to 127 peripheral devices, such as mice, modems, and keyboards. USB
also supports Plug-and-Play installation and hot plugging. It is expected to completely replace serial
and parallel ports.
WMA
Windows Media Audio (WMA) is the compressed audio format that Microsoft is positioning as a
replacement for MP3. WMA may replace MP3 since it offers greater file compression—twice that of
MP3—at the same or better sound quality.