So I'm making a feature film. My camera only shoots mp4 files. I can import mp4 files into premiere, but after a while I start having trouble editing, or I get a grey or media pending screen instead of video. I don't have enough drive space to convert to prores for a whole feature. My question is, what other choices do I have? What file/container/codec format can I convert to that keeps file sizes in the range of mp4s, but that flow well for editing in Premiere? Please help. Thanks.