Sony Handycam DCR-TRV730E Operating Instructions Manual page 178

Preventing accidental erasure
– Image protection
To cancel image protection
Select OFF in step 6, then press the SEL/PUSH
EXEC dial.
Note
Formatting erases all information on the
"Memory Stick", including the protected image
data. Check the contents of the "Memory Stick"
before formatting.
If the write-protect tab on the "Memory Stick"
is set to LOCK
You cannot carry out image protection.
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