Mach Speed Technologies T2800 - Manual (Page 16)

Photo Mode
Photo mode will allow you to view your image files, whether they are photos,
computer generated images, album art, etc.
Note- this player will only display images in the following formats: JPEG,
BMP, GIF, PNG, and TIFF. We recommend converting your files to 320x240 or
240x320 dimensions before loading them to the player for optimum quality.