I want to preface this by saying that I have no clue what I'm doing, all I want to do is use my GH2 to record in the best movie quality I can get. I've gone through a bunch of hacks, most of them from OSGfilms and followed the tutorial. Every hack I try when I'm in movie mode I get an error that states "motion picture recording was cancelled due to slow write speed". I'm using a Sandisk Extreme Pro 64gb. It seems to always happen when I'm in 24p mode for about 9 seconds. I've tried maybe half a dozen hacks and I get the same result. I don't want to just use the camera defaults because the hacks were the main reason why I bought the camera. Any help would be appreciated.