Hello, backing up the CF card copies the following files to my computer:
.THM
.XML
.MXF
.CIF
.SIF
.CFA
.PEK

Other than the MXF file, what are the other files, what purpose do they serve, and do I need them?

Thanks for any help. (I read the manual and there is no mention of these formats).

Regards,

Len

You should keep all the files as there is metadata stored & the NLEs expect the whole card layout.

BTW The PEK & CFA files you listed are not generated by the camera. It looks like you are using Premiere Pro which generates these files when you import video.