Pentax Optio A40 Operating Manual page 140

Deleting a Voice Memo only
If an image has a voice memo, you can delete the voice memo without
deleting the image.
1
Enter the Playback mode and use the four-way
controller (45) to select an image with a voice memo
to delete.
2
Press the Green button.
The Delete screen appears.
3
Use the four-way controller (2) to
select [Delete sound].
4
Press the OK button.
The voice memo is deleted.
Select Delete in Step 3 above to delete both the image and the voice
memo.
6
138
100-0010 100-0010 100-0010
Delete sound Delete sound Delete sound
Delete Delete Delete
Cancel
All All All OK OK OK
OK