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Glossary
ATRAC3
ATRAC3, which stands for Adaptive Transform Acoustic Coding3, is audio compression technology
that satisfies the demand for high sound quality and high compression rates.
The ATRAC3 compression rate is approximately 10 times higher than that of the Audio CD, resulting
an increased data capacity for the media.
Bit rate
Indicates the data amount per second. The rate is reflected in bps (bit per second).
In this unit, the bit rate for recording an audio CD or converting MP3 and WAV format audio files into
ATRAC3 format can be chosen from 132 kbps/105kbps. 105 kbps means 105000 bits of information
per second. If the bit rate is large, that means a large amount of information is used to play music.
Comparing music of the same format, a 132 kbps data offers better sound quality than 105 kbps data.
However, audio files in formats such as MP3 have different encoding methods, and thus sound quality
cannot be determined by simply comparing the bit rate.
Check-In/Check-Out
Check-Out is to transfer music files from your unit to an external device/media (such as Network
Walkman). Returning Checked-Out music files to the same unit is to Check-In. (You cannot move
Checked-Out music files to another device/media.)
You can Check-Out a music file, check it back in, and then check it out again an infinite number of
times. The SDMI rules provide that up to four copies of a music file can be Checked-Out at one time.
OpenMG employs a method whereby three copies of a song can be Checked-Out simultaneously, while
the fourth copy is maintained as a “master” on your unit. If three copies of the same song are Checked-
Out at a given time, one copy of the song needs to be Checked-In to the unit in order to create an
additional Check-Out.
Import
Transfers audio files stored on “MG Memory Stick” into this unit. The imported audio files are stored
automatically to the Album 001 in the Folder 001 on the hard disc drive.
MagicGate
Copyright protection technology that consists of authentication and encryption technology.
Authentication ensures that protected content is transferred only between compliant devices and media,
and that protected content is recorded and transferred in an encrypted format to prevent unauthorized
copying or playback.
Note
is terminology denoting the copyright protection system developed by Sony. It does not
guarantee conversion among other media.
“MagicGate Memory Stick”
A compact IC recording media “Memory Stick” equipped with “MagicGate” copyright protection
technology. You can record or play data, such as music, that requires copyright protection only by using
a “MagicGate Memory Stick” with “MagicGate” compatible equipment (e.g., Network Walkman).
“MagicGate Memory Stick” can be used to record any other kind of digital data with any other
“Memory Stick” compatible equipment.
“MagicGate Memory Stick” is distinguished by the “MG” and “MAGIC GATE” logos.