Sony MZ-R30 operating instructions System limitations, SymptomCause, 30-EN

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.

SymptomCause

“TR FULL” appears even before the disc has reached the maximum recording time (60 or 74 minutes).

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.

“TR FULL” appears even before the disc has reached the maximum track number or recording time.

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.

Track marks cannot be erased.

When the data of a track is fragmented, the track mark of a fragment under 12 seconds long cannot be erased.

The remaining recording time	Tracks of under 12 seconds in length are not
does not increase even after	counted and so erasing them may not lead to an
erasing numerous short tracks.	increase in the recording time.
The total recorded time and the	Recording is done in minimum units of 2 seconds
remaining time on the disc may	each, no matter how short the material. Even if
not total the maximum	the last unit of recording is less than 2 seconds, it
recording time (60 or 74	is counted as a unit of 2 seconds. Then 2 seconds’
minutes).	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 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.

30-EN