How can I avoid losing an edit when a video project uses files from several folders?

Treat the project and its source media as a set. Before moving anything, open the project in the editor you used and note its clips, audio, still images, and other linked media. Check that the project currently displays or plays them; the project file may refer to media stored elsewhere.

Use your editor’s documentation to find linked files and, if available, gather them into a project folder or library. In iMovie on Mac, selecting a timeline clip and choosing File > Reveal in Finder opens the folder containing that clip’s source file. [S2] Apple also documents a Consolidate Project Media command that copies a project’s media into the open iMovie library. [S1] Other editors may work differently, so don’t assume these iMovie steps apply to them.

Make a location inventory while the project is open. Note each item’s name and current folder or storage device. In iMovie on Mac, select a timeline clip and choose File > Reveal in Finder to open the folder containing its source file. [S2] Repeat for items that may be elsewhere; locating one clip does not show that every source is in the same place.

For example:

• Interview_A.mov — [folder or drive]
• Room tone.wav — [folder or drive]
• Logo.png — [folder or drive]
• Unclear item — [name; investigate before moving]

This inventory is a tracking aid, not proof that you have found every dependency. If you cannot identify an item, pause and consult the editor’s documentation before relocating or deleting files.

Consolidation gathers linked media according to the editor and command you use. In iMovie on Mac, Apple documents Consolidate Project Media as copying a project’s media into the open library. [S1] The guide distinguishes this from commands for consolidating library or event media, so check the command’s scope and your editor’s instructions.

It is a preparation step, not a transfer guarantee. Apple’s guide does not establish that a copy is complete or that another editor can open it. [S1] After consolidating, check that the expected files are present. For a handoff, agree on the editor the recipient will use and ask them to verify access before treating the transfer as complete.

Keep the original files until you have checked the moved or shared copy. Open the project from its new location in the intended editor, look for missing-media warnings or blank items, and play sections that use media from different folders. This is a practical spot-check, not proof that every asset is intact.

If something is missing, avoid deleting or overwriting the original project or source folders. Follow the editor’s documentation for addressing missing media, or ask the recipient to identify the missing item and its expected location. The cited iMovie guidance explains how to reveal a source file and consolidate project media; it does not describe relinking missing media or validate a project on another computer. [S1] [S2]