I realized that I didn't really know anything about the Rosetta Stone or how it served the function it did to historians. Now that I know, it seems so obvious: it contains the same proclamation in three different languages. If you can read one, you can use it to translate the others. Or try. Unfortunately, the hieroglyphics section is incomplete.

Camera Maker:	Casio Computer Co.,ltd.
Camera Model:	EX-Z850
Shutter Speed:	1/50 sec
Aperture:	f/2.8
Focal Length:	7.9 mm
ISO Sensitivity:
Time Taken:	2008:05:14 04:32:55
Exposure Compensation:	0 EV
Metering Mode:	Multi-Segment
Flash Fired:	No Flash