it seems to me the CCTV recorder multiplexes the 8 camera streams into
one file.
Given there is typically 60 of these SSF files every day, that suggests
each 4.3 GB SSF file is 24 minutes long.
Given that DTT and Freesat broadcast multiplexes that carry several TV
channels, I happen to have DVB tuners in my computer than can record a
multiplex rather than just one channel. I am aware of open source
software that can demultiplex a recorded multiplex into its individual
channels.
So is it too much to hope that the SSF files could be demultiplexed into
8 files using the same demultiplexing software (the words PVAstrumento
and Handbrake come to mind) as hopefully the CCTV uses standard MPEG
codecs to digitise the analogue video, compress it, and make it into a
playable video file that follws some video standard like MPEG?
Co-incidentally, the DVR can export the stored recoerdings to AVI as
well as to SEC format....