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I'm brand new here and live in South Africa. I bought a GH4 from a dealer that had to import the camera as Panasonic seems not to supply it to South Africa currently. So, I'm rather alone in trying to sort things out. After doing about 300 short movie clips with it, I kind of know the camera by now. My problem comes after shooting a clip. I use Premiere CS6 and Vegas 13 to do my rendering and all the clips are shot in CinelikeD CK4 24p profile. When I import the clip from the camera's Sandisk 280Mbps U3 Ultra Fast Card into Premiere, I render the clip before exporting in 1080p. The rendered product does not play back smoothly. It has numerous "judders / jitters) and makes the footages useless. We use the PAL system here and I have wondered if the problem could be a sync issue between the 24p and the PAL system (which is 25p). I use a i5 PC with Windows Professional 64bit, 8Gb Ram and a 7200 rpm drive (2Tb). I also installed a quality 4Gb Asus graphics card. Last week I took my footage to a media house working with top end Apple PCs, asked them to render the file and got about the same "poor" result. I must say they said it was the first time they worked with 4K. What am I doing wrong? I'm by now at then of the rope and frustrated. Any suggestions / help will be highly appreciated. Regards