I use Hitfilm 3 Pro for editing my videos I record with FRAPS and it has worked flawlessly for about 6 months now. However just recently specific parts of a video I recorded will playback choppy. It's always just a 15 second part of a long clip but whatever I do it still plays back incredibly choppy and i can do remotely nothing about it. This has never happened before and I was hoping I could find a solution here. Could it be that the file size of the video is a gigantic 94 GB 30 minute video? I haven't had problems with videos of that size before so I'm not sure. Any help would be greatly appreciated!