HDV Z1 not recognised by iMovie

[gascoyneone]

HDV-Z1U camcorder not recognised by iMac

My 2019 iMac will not recognise my 2008 Z1 camera . I have firewire to 9 pin plug which is plugged  in to Thunderbolt to firewire adaptor and then Thunderbolt 2 to 3 adaptor both Apple  into the back of my iMac 2019 with Monterey 12.6

I have tried all ways and it just is not recognised by iMovie or anything else. 

I'd like to thank responders to my previous post I've tried all your  suggestions but I still cannot get any of my mountain of HDV and DV tapes digitised due to this machine not being recognised. 

[danardeng]

Which is the reason why you open multiple treads for the same question?
As suggested few days ago https://community.sony.co.uk/t5/camcorders/hdv-z1u-camcorder-not-recognised-by-imac/td-p/3882752

It’s at 99% a problem of the operating system that doesn’t support any more DV devices.

Grab an oldest mac to acquire your old type