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SONY MZ-B3 (E) 3-798-610-22(1)
34
System limitations
The recording system in your MiniDisc recorder is radically different from those used
in cassette and DAT decks and is characterized by the limitations described below.
Note, however, that these limitations are due to the inherent nature of the MD
recording system itself and not to mechanical causes.
Symptom
"TR FULL" appears even before
the disc has reached the
maximum recording time (120
or 148 minutes in monaural, 60
or 74 minutes in stereo).
"TR FULL" appears even before
the disc has reached the
maximum track number or
recording time.
Track marks cannot be erased.
The remaining recording time
does not increase even after
erasing numerous short tracks.
The total recorded time and the
remaining time on the disc may
not total the maximum
recording time (120 or 148
minutes in monaural, 60 or 74
minutes in stereo).
The edited tracks may exhibit
sound dropout during search
operations.
Cause
When 254 tracks have been recorded on the
disc, "TR FULL" appears regardless of the total
recorded time. More than 254 tracks cannot be
recorded on the disc.
To continue recording, erase unnecessary
tracks.
Repeating recording and erasing may cause
fragmentation and scattering of data.
Although those scattered data can be read,
each fragment is counted as a track. In this
case, the number of tracks may reach 254 and
further recording is not possible.
To continue recording, erase unnecessary
tracks.
When the data of a track is fragmented, the
track mark of a fragment under 12 seconds
long cannot be erased.
Tracks of under 24 seconds in monaural (12
seconds in stereo) in length are not counted
and so erasing them may not lead to an
increase in the recording time.
Recording is done in minimum units of 4
seconds (2 seconds in stereo) each, no matter
how short the material. Even if the last unit of
recording is less than 4 seconds, it is counted as
a unit of 4 seconds. Then 4 seconds’ space is
put before recording starts again to prevent the
last unit of the previous track from being
erased.
The contents recorded may thus be shorter
than the maximum recording capacity.
The fragmentation of data may cause sound
dropout while searching because the tracks are
played at higher speed than normal playback.