Operation Manual

Page 12
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 can 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 created by Microsoft as an
alternative to MP3. WMA may replace MP3 since it offers greater file compression—twice
that of MP3—at the same or better sound quality, enabling you to store twice as much music
on your PC or Rio.