Canon EOS 50D Record Menu Options
Here are screen-shots of the Canon EOS 50D's Record Menus 1 and 2. Of note are the two small RAW mode sizes available (sRAW1 at 7.1mp and sRAW2 at 3.8mp), and the new Peripheral Illumination Correction function to reduce lens shading ("vignetting"), found in the Record Menu 1.
Record Menu 1:
Record Menu 2: