1 Great filming, but poor sound - out of sync with videogarywood84 | 09/09/2011 | See all garywood84's reviews (1)The quality of the filming on both the bluray disc and DVD is excellent. However, on the bluray disc, the sound is out of sync with the picture. This means that when you watch a rider interview, for instance, the sound you hear doesn't line up with their mouth moving.I contacted Duke directly about this and they said it's a known issue but that they won't be re-authoring the disc to fix it. This is a real pity, because it means this bluray product is pretty useless - you'll end up watching the included DVD copy.I'd recommend anyone considering buying this saves money by buying the DVD on its own. The bluray picture quality is fantastic, but the sound issues detract to the extent that inferior picture quality with proper sound is preferable.