In addition to Kevin’s suggestion, I’ll share a bit about how we handle this.
We have a large SAN which is shared by dozens of editors. Obviously, the kind of match framing you’re talking about becomes very problematic across multiple projects. Our approach is to treat the entire SAN as the project. In other words, you organize your media using the standard MAC OS file structure. More importantly, you do NOT rename your clips… you decide on a filename structure and stick to it. If you absolutely need to call your clip “CU Dog peeing”, then put it in the “Comments” column.
So, when you go to “matchframe” your clip, it will NOT show up in the project, however, there is a key stroke called “Reveal in Finder”. Boom! FCP will automatically take you to where the clip lives in the finder. If you are diligent about keeping your media organized, this method works quite well. We do hours and hours of reality TV per week and we’d never make our air dates if it didn’t work.
I’ve written an article about sharing projects in FCP. You can google for it: “Sharing projects with FCP”.
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