Sony Handycam DCR-TRV730E Operating Instructions Manual page 181

Deleting images
To cancel deleting all the images in
the "Memory Stick"
Select RETURN in step 5, then press the SEL/
PUSH EXEC.
While DELETING appears
Do not turn the POWER switch or press any
buttons.
If the write-protect tab on the "Memory Stick"
is set to LOCK
You cannot delete images.
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