Were to find Final Cut Pro 10.6.5?

The latest OS that runs in your Mac is 10.14 Mojave. I don't know how you could be running Monterey on it, unless you used some hack to install an unsupported OS, or maybe the machine identifier MacPro 5,1 is not the correct one. This should be a 2012 model.

Please clarify.

With more precise information, we can address the question of which version you might get to run on your machine.

Regardless, be aware that you won't be able to purchase FCP on that machine.

You'd need to login to the App Store with your Apple id on a Mac running Ventura or later, make the purchase, and then back at the older Mac you would be allowed to download a compatible version.

Whether that would be 10.6.5 or some other would depend on the OS running on that machine.

For the record, I have to say that you are dwelling on dangerous territory.

I have no idea how FCP may perform in your patched OS. Spending $300 in these circumstances is a risk.

Perhaps you could try iMovie instead, as it is free, and it may (or may not) do what you need.

You have a very old machine and it would seem a waste to buy FCP.

As Luis said, you may find iMovie does all you need.

FCP 7 is completely different from FCP X. A closer match to FCP 7 would be the FREE version of DaVinci Resolve which is the editing app many are now embracing.

https://www.blackmagicdesign.com/uk/products/davinciresolve

If your Mac is too old to run the latest version, you can download any of the older ones. In the link below scroll down the Latest Downloads section until you find a suitable one.

https://www.blackmagicdesign.com/support/family/davinci-resolve-and-fusion

FCP 7 only works up to 10.12 Sierra. If you are using it in Monterey it’s no surprise that it fails. In Mountain Lion it should work.

Any version of FCP since 10.0 is not compatible with old FCP 7.

The applications are very different, and you can’t open a FCP 7 project in 10.6.5. It would require exporting xml from FCP 7, and then using a third party application to convert this xml into a version that the newer FCP could use. All sorts of things could go wrong as the two applications have different paradigms.

In fact, if you want something similar to FCP 7, you are likely to have more success with Resolve or Premiere Pro.

You are looking at spending $300 plus the cost of SendToX with no guarantee that things will work better.

I suggest you try Ian’s advice and test Resolve. I think it can import thd xml from FCP 7 (but I am not sure).

As Luis pointed out, you have asked the wrong question . . . it should have been, "Why is FCP 7 misbehaving and how can I cure it?"

You have upgraded your OS too far!

Addendum: As your FCP 7 projects will contain all your original media it might be better to get Resolve and start editing again if you can't get FCP working. This may sound daunting but remember that you have already made the editing decisions so it shouldn't be too onerous to do a new edit.

Sorry I missed that part. I was focusing on the OS versions and FCP, and skipped over it.

If you are planning on getting a new mac soon, I agree that you lose nothing by going with FCP now, even if the current mac is quite old, and it may not work great on it.

Just make sure that you buy FCP using your Apple id. This is essential so that you can then download and get future updates on any mac that you come to own (and, as a side note, this applies to family members associated to you in Family Sharing).

If you do a web search you will find that some editors claim to have been able to export FCP 7 projects as XML to be finished in Resolve.

It's not straightforward and I have not any experience with it.

The latest version that works on Monterey is DaVinci Resolve 18.6.6