Sony digital handycam DCR-TRV10 Operating Instructions Manual page 104

Deleting images
To cancel deleting all the images in the Memory Stick
Select RETURN in step 4, 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.
104