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"Memory Stick"
This is a compact, light-weight IC recording
medium. The "Memory Stick" is a regular
"Memory Stick" without the copyright protection
technology used in the "MagicGate Memory
Stick." The "Memory Stick" can be used to
record image and audio data, etc. with "Memory
Stick" compatible equipment. Different types of
data can be recorded on a single "Memory
Stick."
MP3
MP3 is short for MPEG Audio Layer3. It is an
audio compression standard set by a working
group (MPEG) of the ISO (International
Standards Organization). MP3 is able to com-
press audio data to about 1/10th the level of a
conventional disc.
Multi-session
Multi-session is a recording method that allows
additional data to be recorded later. When
recording data on a CD-ROM, CD-R or CD-RW,
etc., all data from beginning to end is treated as
a single unit or session. Multi-session is a
method of recording more than 2 sessions in
one disc.
Packet write
This is a general term for a method of writing on
CD-R, etc. at the time required for a file, just as
is done with files on floppy or hard discs.
SCMS
SCMS is short for Serial Copy Management
System. This is a serial copy management sys-
tem developed to stop serial copying (copying
of copies) of music, including copying of music
recorded digitally from CDs etc. to a hard disk
(music server).
SDMI
SDMI is short for Secure Digital Music Initiative.
In order to develop a uniform system of copy-
right protection technology that can be used
around the world, more than about 130 compa-
nies and organization representing the record-
ing, computer and consumer electronics indus-
tries have created a form. The objective is to
prevent illegal use of music data and to pro-
mote the development of legitimate music distri-
bution services. The "MagicGate" copyright pro-
tection technology is standard based on SDMI
regulations.
VBR
VBR is short for Variable Bit Rate. Generally
speaking CBR (Constant Bit Rate) is more
widely used. But to flexibly adjust the bit rate
according to the needs of audio compression, it
is possible to achieve compression priorities
sound quality.
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