Sony ZS-M35 Primary Operating Instructions Manual page 68

Getting to know the MD (continued)
Features
Long recording
The MD uses a new digital audio
compression technology called
Adaptive TRansform Acoustic Coding
(ATRAC). To store more sound in less
space, ATRAC extracts and encodes
only those frequency components
actually audible to the human ear.
Quick random access
Like CDs, MDs offer instantaneous
random access to the beginning of any
music track. Pre-mastered MDs are
recorded with location addresses
corresponding to each music track.
Shock-resistant memory
One major drawback of optical read
systems is that they skip or mute the
sound when subject to vibration. The
MD system resolves this problem by
using a buffer memory that stores audio
data.
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Additional Information