Sony GV-D1000 Operating Instructions (primary manual) Operating Instructions Manual page 54

Labeling a cassette
If you set the write-protect tab of the tape to
lock
You cannot label a cassette. Slide the write-
protect tab to release the write protection.
If the tape has too many index signals
You may not be able to label a cassette because
the memory is full. In this case, delete data you
do not need.
If you have superimposed titles in the cassette
When the label is displayed, up to four titles also
appear.
When the "-----" indicator has fewer than 10
spaces
The cassette memory is full.
The "-----" indicates the number of characters
you can select for the label.
To erase a character
Press [C]. The last character is erased.
To enter a space
C
Select [ Z& ? ! ], then select a blank space.
54