Sony MZ-R37 - Manual (Page 29)

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Symptom
“TrFULL” appears
even before the disc
has reached the
maximum recording
time (60 or 74
minutes).
“TrFULL” 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 (60 or 74
minutes).
The edited tracks may
exhibit sound
dropout during
search operations.
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.
Cause
When 254 tracks have been recorded on the disc, “TrFULL”
appears regardless of the total recorded time. More than 254 tracks
cannot be recorded on the disc. To continue recording, erase
unnecessary tracks.
Repeated 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. You cannot
combine a track recorded in stereo and a track recorded in
monaural; nor can you combine a track recorded with digital
connection and a track recorded with analog connection.
Tracks of under 12 seconds in length are not counted and so erasing
them may not lead to an increase in the recording time.
Normally, recording is done in minimum units of approximately 2
seconds. When recording is stopped, the last unit of recording
always uses this unit of 2 seconds even if the actual recording is
shorter. Likewise, when recording is restarted after the stop, the
recorder will automatically insert a blank space amounting to 2
seconds before the next recording. (This is to prevent accidental
erasing of a previous track whenever a new recording is started).
Therefore, the actual recording time will decrease whenever a
recording is stopped; a maximum of 6 seconds compared to the
potential recording time for each stop.
The fragmentation of data may cause sound dropout while
searching because the tracks are played in higher speed than
normal playback.