Sony MZ-B100 System limitations, Cause, 49-GB, Symptom

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
“TR FULL” appears	When 254 tracks have been recorded on the disc, “TR FULL”
even before the disc	appears regardless of the total recorded time. More than 254
has reached the	tracks cannot be recorded on the disc. To continue recording,
maximum recording	erase unnecessary tracks.
time (60, 74, or 80
minutes).
“TR FULL” appears	Repeated recording and erasing may cause fragmentation and
even before the disc	scattering of data. Although those scattered data can be read,
has reached the	each fragment is counted as a track. In this case, the number of
maximum track	tracks may reach 254 and further recording is not possible. To
number or recording	continue recording, erase unnecessary tracks.
time.
Track marks cannot be	When the data of a track is fragmented, the track mark of a
erased.	fragment under 12 seconds long (recorded in stereo), 24 seconds
The remaining	long (recorded in LP2 stereo mode or monaural mode), or 48
recording time does	seconds long (recorded in LP4 stereo mode) cannot be erased.
not increase even after	You cannot combine a track recorded in stereo and a track
erasing numerous short	recorded in monaural; nor can you combine a track recorded
tracks.	with digital connection and a track recorded with analog
	connection.
	Tracks of under 12 seconds, 24 seconds, 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	Normally, recording is done in minimum units of approximately
and the remaining time	2 seconds (in stereo), 4 seconds (in LP2 stereo mode or
on the disc may not	monaural mode), or 8 seconds (in LP4 stereo mode). When
total the maximum	recording is stopped, the last unit of recording always uses this
recording time (60, 74,	unit of 2 seconds, 4 seconds, or 8 seconds even if the actual
or 80 minutes).	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; a
	maximum of 6 seconds, 12 seconds, or 24 seconds compared to
	the potential recording time for each stop.
The edited tracks may	The fragmentation of data may cause sound dropout while
exhibit sound dropout	searching because the tracks are played in higher speed than
during search	normal playback.
operations.

49-GB