Sony MZ-N707 - Manual (Page 38)

MP3
MP3, which stands for MPEG-1 Audio Layer3, a standard for audio files compression
determined by the Motion Picture Experts Group, an ISO (International Organization
for Standardization) working group. It enables compression of audio files to about 1/
10 of the data size of a standard compact disc. Since the MP3 encoding algorithm is
disclosed, there are various encoders/decoders that are compliant with this standard,
including freeware that is available for no charge. Thus, the MP3 standard is widely
used in the computer field.
OpenMG
Copyright protection technology to import and manage contents of music distribution
services or CDs. By using software compliant with OpenMG, audio contents can be
encrypted before storage on a hard disk drive so that you can enjoy playback of the
audio files on that computer. OpenMG also prevents unauthorized distribution of the
contents via the Internet or other networks.
SDMI
SDMI which stands for Secure Digital Music Initiative, is a forum that consists of over
130 companies in the fields of recorded audio content, computers, and consumer
electronics, dedicated to developing an integrated method of copyright protection
technology that can be used worldwide.
SDMI is working to create a framework for preventing improper usage of audio files
and to promote legal music distribution services. The copyright protection technology
OpenMG is based upon the SDMI standard.
Windows Media Technology
A technology including a contents management system called Windows Media Rights
Manager, which can encrypt contents and distribute them with their conditions for
usage, distribution, etc. Audio files supporting Windows Media Technologies (WMT)
downloaded via HMD* can be imported into and managed by OpenMG Jukebox.
* EMD may not be available in certain areas of the world.
Glossary (continued)
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