I have a Canon 6D DSLR that I am shooting video on. The camera is set to capture 1280x720 60fps IPB MOV / MPEG-4 files. The video files are in the range of 250MB per minute of recording. I have literally no skills in video editing and at this point just capture important family events to potentially edit in the future. I understand compression and the loss of quality from a general perspective.
Is there a format or method that would be a reasonable trade-off between file size and quality beyond leaving the files in their existing state? Should I just leave them alone? Knowing that my DSLR has specific needs to write the file to a memory card immediately, it is understandable that it isn't in the optimal format for long term storage; so that is why I imagine an answer may exist to this question.