Sony WALKMAN MZ-R909 Operating Instructions Manual page 115

TOC Edit :
The MD recorder is recording
information (track start and end
position) from the memory to the disc.
Wait until this process is completed.
Do not expose the recorder to physical
shock, nor disrupt power supply.
TR FULL:
You tried to record more than 254
tracks.
TrPROTECT :
You tried to record over or edit a track
which has been protected from being
recorded over*.
* Track-protected MiniDiscs — Some
MD recorders will let you protect
individual tracks from being recorded
over. This recorder, however, does not
offer this feature.
115