EDRs aka "Black Boxes"

[K7AAY]

http://www-nrd.nhtsa.dot.gov/pdf/nrd-01/SAE/SAE2004/EDR-GovtPerspective_Brophy.pdf
NHTSA mentions Liberties have "208-Compliant" EDRs. How much more does such an EDR collect when compared to what's in a Grand Cherokee?
http://www.wkjeeps.com/wk_airbags.htm#EVENT