MP3 music files use algorithms to shrink file sizes while maintaining CD-quality sound. MP3 players are portable devices that store and play compressed audio files like MP3s using various types of memory. Ripping is the process of copying audio from media like CDs to a hard drive in compressed formats like MP3. Copyright law gives creators exclusive rights over their work for a set time period before it enters the public domain.

1. HOW MP3 MUSIC FILES WORK
INDEX
P1, INDEX
P2, MP3 music file
P3, MP3 Player
P4, Ripping
P5, Copy-right
P6, References

2. MP3 music file
MP3 music files use special algorithms that shrink
the size of the files while retaining CD-like quality.

3. MP3 Player
● MP3 players are small portable devices that play
audio files, namely MP3s, but also other file
formats in some cases.
● MP3 players make use of various types of
memory for storing the music and other files that
they hold.

4. Ripping
● Ripping is the process
of copying audio or
video content to a hard
disk, typically from
removable media or
media streams.

5. copyright
Copyright gives the author of an original work
exclusive right for a certain time period in relation
to that work, including its publication, distribution
and adaptation, after which time the work is said to
enter the public domain. Copyright applies to any
expressible form of an idea or information that is
substantive and discrete and fixed in a medium.

6. References
http://www.computerdatastorage.org/topic/how-mp3-pla
http://www.computerbooksdownload.com/deals/produc
http://www.fotosearch.jp