Editing issues in FCP re ProRes
I face editing issues in FCP because I'm working with video files created 2004-2010, and 8mm movies converted to .mov. Apple support has told me my editing issues are because my videos are not ProRes compatible. I'm also including many old .jpegs, .PNG screenshots and some AI-enhanced .jpegs, so I'm not sure that only the old videos are the only cause of editing issues. When I started this project 1+ years ago, I had no problem editing, and perhaps the problem is upgrading to Sequoia and the most recent FCP. With many work arounds, I will get through this project.
My question is my next video project. I will convert all the old video to ProRes, but what about my image files? I have an iPhone14 which doesn't have ProRes like the Pro, so do I have to convert these files to ProRes? Apple told me that just because I edit images in Photos, I'm not guaranteed ProRes compatibility. And most irritating, Apple has no ProRes converter app and refuses to recommend a third party.
I would love to hear how anyone is dealing with this "ProRes" challenge.
iMac 24″, macOS 14.7