Various kinds of methods are combined to unify technical
specification to prevent digital music data from illegal reproduction.
Let's examine groups and vocabularies related to copyright.
SDMI (Secure Digital Music Initiative)
Internet music record company consortium to pursue development of digital music file format.
World-class music makers and related groups are formed to protect copyright of music and to pre-
vent illegal reproduction.
-PD : Portable Device
-PM : Portable Media (SMC,MMC,MS,SD Card)
-UID : All PD, PM should have unique ID.
-Binding : All Digital Audio should be bounded to PD or PM.
DRM (Digital Rights Management)
Manage interests of persons related to copyright that occurs due to use of digital contents protected
from illegal use of digital contents through various channels.
Technology of inserting the specific data to claim copyright of multimedia contents so that eyes and
ears of human cannot be distinguished.
Digital Security Total Solution adopting Snake encoding algorithm.
Version1.0 contents in service in Korea (M4you.com, etc.)
SDMI compliant vrsion2.0 development completed
Reproduction Prevention System
Reopening of MP3 music service.
Lots of dispute have occurred in network due to copyright.
However, as online MP3 sales have resolved, the number of legal Internet site has increased.
However, reproduction prevention system is required for legal sales. All Internet sites serving
Korean song in MP3 are introducing reproduction prevention system.