1. How MP3 Music Files Work
● Software
● CD
● MP3
● Permission

2. software
● With the software,it is
a computer program
and an about the
same meaning in a
narrow sense. The
thing which discribed
a procedure / an
order to operate a
computer in the form
that a computer could
understand.
●

3. CD
● Medea whom I
engrave careful
unevenness into a
disk made by resin
with the CD, and
record data.

4. MP3
● The one of the
speech compression
methods that the MP3
is MPEG -1 of the
picture data
compaction method,
and is used. The one
of the speech
compression methods
spreading most
widely.

5. permission
● The permission is the
Access Priviledges of
the user for a file and
the directory stored in
the hard disks of the
computer.

6. References
http://www.cisco.com/jp/index.shtml
http://www.ibm.com/jp/
http://freesoft.tvbok.com/
http://websyosinsya.seesaa.net/