Importing mini DV tape from Sony Handy-cam Model: DCR-TRV9

I do not believe that the cable you are using is suitable . The comments contained in the Amazon link you provided also suggest that it does not work.

Your Mac will need the FireWire cable described below plus the 2 adaptors also described below.

To import from DV cam' to Mac you must use the FireWire port on the cam' .

You will need a 4 pin FireWire to 9 pin FireWire cable.

And 2 more adaptors. The first is FireWire 800 ( 9pin) to thunderbolt and the second is thunderbolt to USBc.

https://www.apple.com/uk/shop/product/MD464ZM/A/thunderbolt-to-firewire-adapter

https://www.apple.com/uk/shop/product/MMEL2ZM/A/thunderbolt-3-usb-c-to-thunderbolt-2-adapter

So 3 cables in all. About £80/$80 for the latter 2. There is not just one cable that exists to do the lot.

You need to be aware that the success rate of importing mini DV into iMovie/FCPX seems to have decreased over the last few years with newer OSs and newer hardware..It works for some but not others.

If you have an older Mac with an older OS then you will have more chance of importing.

Or a friend that has an older Mac with FireWire ports, so no need for the 2 adaptors.Use an external drive and transfer to your Mac .

Some who have been unable to import into FCPX/iMovie have been able to use the Record feature in QuickTime Player, and then bring this into FCPX. QTP is on your Mac.

https://support.apple.com/en-gb/HT201066

If you do a search on this forum and iMovie you will get an idea of the issues that exist before paying out up to $80/£80

for cables.

Note the links above to the Apple shop for the adaptors is the UK site , you may have to go to the site in your location if not in UK .

Assuming that you have the camera correctly connected and switched on in VTR Playback mode, open the Import window in iMovie.

Your camera should be listed at the top left corner.

Select it and press the Import All button at the bottom right.

You may or may not need to start the playback manually on your camera.

You may have to start playback before hitting "Import All" .............. I can't remember exactly!

You have to connect the camera to the Thunderbolt socket.

There have been 3 versions of Thunderbolt so you may need 2 adapters if your Mac is under 6 years old to convert FW to Thunderbolt 1 and another to convert Thunderbolt 1 to Thunderbolt 2.

I don't know the exact details but it's rather expensive and there is no guarantee it will work.

Just checked and it appears that Thunderbolts 1 and 2 use the same connecter but Thunderbolt 3, which was introduced around 2016 has a different connecter.

So if your MBA was made in 2018 or later you will need the 2 connecters.