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DATA
FIELD:
For
1024
bytes/sectof format, the
data
field
consists
of
1024
bytes
of
user
data,
and
1
64
bytes
of
CRC/ECC
data, plus
1
2
bytes
of
control information.
For
51
2
bytes/sector format, the
data
field
consists
of
51
2 bytes
of
user
data,
84
bytes
of
CRC/ECC
data,
and
2
bytes
of
reserved
data,
plus
12
bytes
of
control
information.
RESYNC
(Resynchronization
Mark):
The
purpose
of
the
RESYNC
marks
is
to
prevent
the
loss of
byte synchronization
when
the
VFO
must
ride
through
defects
within
a data
field
and
to
limit
the propagation
of errors.
The
RESYNC
consists
of
1
byte
pattern
(16
channel
code
bits)
of irregular
(2.7)RLL modulation code.
[pattern]
0010000000100100
BUFFER:
The
BUFFER
consists
of
a
total
of
20
bytes
of
reserved
space
for
motor
speed
tolerances
and
other
electrical/mechanical tolerances.
8
Soclion
2:
Spacification
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