Originally Posted by jkimrey
How are you guys formatting your background images so it looks nice on the touchscreen?
The times I've tried it, the images appear stretched...
The picture needs to be 800x378 pixels to appear unstretched.
What I do is scale any image down (in Paint.NET, Photoshop, ... whatever), preserving aspect ratio, so that one of its dimensions matches (width = 800 or height = 378) and the other is larger (width > 800 or height > 378). Then crop (not resize) the other dimension to select the viewable region without squashing the image horizontally/vertically.
You can make almost anything work with this approach. Widescreen images (16x9) work best because they're closer to 800x378 aspect ratio than 4x3, so you don't need to crop as much.