Here CHUNKFILE is beginning to get to grips with DATA1 in Automatic mode. It has worked out that it will take 13 swipes to copy it all, so the chunks will be saved with the original file name plus the chunk number annexed at the end. I have kept the memory buffer, and therefore the chunk size, limited to 8MB being the maximum MDFS file size, although I do have twice as much space available on the ARM Co-processor.

I like to know what's going on, so there is plenty of information displayed on the screen, from file size to chunk size to chunk number to file offset.