Sony MEX-5DI Operating Instructions Manual page 19

Panorama/Wall paper mode
Scrolls the picture horizontally on the whole screen — Panorama/Wall paper mode
(page 32)
The image format and size which can be displayed is:
JPEG: 1,600 1,200 dots or less
Displayed as a slide show — Clock/Slide show mode (page 37)
JPEG: 1,600 1,200 dots or less
BMP, GIF, PNG: 640 480 dots or less
Note
Images you processed on your computer may not be displayed.
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