Pentax Optio MX Operating Manual page 106

Deleting Voice Memos 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 choose an image with a voice memo
to delete.
2
Press the i button.
The Delete screen appears.
3
Use the four-way controller (23)
to select [Sound Delete].
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.
Setting the Quick Delete Function
When the Quick Delete function is set to O(On), the Delete screen
appears with [Delete] already highlighted.
7
1
Press the MENU button in Playback mode.
The [Q Playback] menu appears.
2
Use the four-way controller (23) to select
[Quick Delete].
3
Use the four-way controller (45) to select O (On) or
P (Off).
4
Press the OK button.
The camera is ready to take or play back images.
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S o u n d D e l e t e
D e l e t e
C a n c e l
A l l A l l A l l
MENU E x i t E x i t E x i t OK
0 0 1 7 0 0 1 7
OK OK OK