I know this is basic but I have not been able to get it to work. I need to save a sequence of matrix frames in full float64 format. Even HDR standards are limited to float32 and it only gets worse with standard image and video formats. I assume there is no actual image standard or video codec that won't screw up my float64 values so I have resigned myself to working with jxf.jit files but it's not clear how to save a multiple frames that can be played back. [jit.movie], [jit.matrix], [jit.record], [jit.matrixset] all have options but there appear to be limitations with the float64 data type and all of the [jit.matrixset] tutorials assume that I want some sort of on-the-fly delay affect. I just want load a bunch of float64 matrix frames to a buffer and save it to disk so I can reload the buffer and play it back again. Is there a simple way to do this?