Amazon has Life of Mammals listed 16x9 and Deep Discount DVD has it listed 4x3. Release date is today (Tues May 12). Anyone know which it is? Also, Amazon has Life of Birds listed 4x3. Is this correct? If not...anyone know why BBC is inconsistent with their aspect ratios? All the Blue Planet DVDs (and Walking w/Dinosaurs) were 16x9 and it really makes for a wonderful presentation on a 16x9 display! Thanks, dave p.s. while we're at is...is walking with Cave Men 16x9 or 4x3?