Play mode display

Switching to play mode displays the last image taken. If the camera has not displayed the image before (it's not cached) there's a slight delay before the full resolution image is shown. Clean display mode with no overlaid information.
Press the display button to overlay basic file and date information. Press once more for exposure information and 4-way histogram (red, green, blue and luminance).

Magnification

You can switch to magnify mode either by pressing the magnify button or by turning the sub command dial. Magnification is available from x1.1 to x5.0 (should be more in my opinion), move around the magnified image using the multi-way joystick.

Thumbnail index

Press the self-timer / thumbnail button to display a 9 image thumbnail index. Using the delete option in thumbnail mode allows you to delete a single image, all images in this folder or selected images (as demonstrated on the right).

Other features

Select Resize from the Play menu to produce a resized copy of the current image. Any smaller image size can be selected. Select Rotate from the menu to rotate the current image in 90 degree steps. This does not rotate the JPEG file itself, instead it simply marks the correct orientation in the files header.