System limitations, 48 system limitations – Sony MZ-R410 User Manual
Page 48
 
48
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
Cause
“TrFULL” appears even 
before the disc has reached 
the maximum recording 
time (60, 74, or 80 minutes).
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.
“TrFULL” appears even 
before the disc has reached 
the maximum track number 
or recording time.
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.
Track marks cannot be 
erased.
When the data of a track is fragmented, the track mark of a 
fragment under 12 seconds long (recorded in stereo), 24 
seconds long (recorded in monaural or LP2 mode), or 48 
seconds long (recorded in LP4 mode) cannot be erased. 
You cannot combine a track recorded in different 
recording mode, e.g., 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.
The remaining recording 
time does not increase even 
after erasing numerous short 
tracks.
Tracks of under 12 seconds, 24 seconds, or 48 seconds in 
length are not counted and so erasing them may not lead to 
an increase in the recording time.
The total recorded time and 
the remaining time on the 
disc may not total the 
maximum recording time 
(60, 74, or 80 minutes).
Normally, recording is done in minimum units of 
approximately 2 seconds (in stereo), 4 seconds (in 
monaural or LP2 mode), or 8 seconds (in LP4 mode). 
When recording is stopped, the last unit of recording 
always uses this unit of 2 seconds, 4 seconds, or 8 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, 
4 seconds, or 8 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 by a 
maximum of 6 seconds, 12 seconds, or 24 seconds.
The edited tracks may 
exhibit sound dropout 
during search operations.
The fragmentation of data may cause sound dropout while 
searching because the tracks are played in higher speed 
than normal playback.