Final Cut Pro offers a unique option when importing media into the application. From the Import Media window, on the right sidebar, under files, you choose a storage location for the media files. There are two choices:
Copy to Library: When you choose this option, Final Cut Pro makes a duplicate copy of the media and places the copies in the current library storage location (which, by default, is in the current library). When you choose this option, Final Cut Pro makes an independent copy, meaning you no longer need the original media (for example, on a camera card or external drive).
Leave Files in Place: This is the more traditional method of media management within nonlinear editors. When you choose this option, Final Cut Pro references the original media in its location using symlinks (symbolic links). Final Cut Pro does not copy them.
There are advantages and disadvantages to both methods. Copy to Library is a great option if you are a single editor, or if you are not sharing the media with another editor. It is also good if the original storage location needs to be reused. Final Cut Pro is in charge of managing your media. The downside to Copy to Library is that storage could very quickly become an issue, especially if you are running low.
Leave files in place is great if you want to keep library sizes small or if you are working off of a shared drive where everyone can point to the same media. The downside? Like you see in the video, you are now responsible for the media and maintaining the linkage. If the clip is moved, you can relink it. If you delete it, like was done in the video, you’re out of luck.
Which is better? It is a preference choice for your workflow. If you are a new editor, try Copy to Library to let Final Cut Pro handle storing your media. If you prefer the flexibility of working off of shared or external drives, try Leave files in place.
Note: Leave files in place is not an option when you are importing from a camera card. It is not a best practice to edit off of a camera card.