Missing Camera files in iMovie unless SD card is in slot

Usually that happens when the SD card is removed before the import has completed. Try reimporting but this time wait for awhile for the import to complete. Then remove the SD card before doing any other operations. See if that gives you a completed import.

-- Rich

i imported video from a memory card into a new movie that i started. After the import i was able to view all the video in thumbnails but did not attempt to transfer any video into my new movie. I subsequently erased my memory card. Today i went to my movie only to fine a series of black boxes that say "missing camera". Have i lost all my video?

Select one of the black boxes and do a File/Reveal in Finder. If the file is not revealed in the Finder folder that pops up, then probably you have lost your video unless you still have it on the camera.

You might try checking the iMovie Backups folder, although it may not help if the import never was completed.

To get to the iMovie Backups folder, follow this file path from the Finder menu:

Go/Home/Library/Containers/com.apple.iMovieApp/Data/Library/Caches/iMovieBackups

When you get there you will see a list of previous backups of your iMovie library.  Click on one dated just after you imported your videos and predating the disappearance.   iMovie will open in that library.   Navigate to your projects browser (where your projects are displayed as icons) and see if your videos are intact.

Perhhaps also you have a Time Machine backup of your library that predates the disappearance of the videos.

You might also try doing a spotlight search of your Mac to see if by any chance the videos ended up somewhere on your Finder, other than in the iMovie library.

Your only other option would be to use recovery software to see if you can recover the files that you deleted from your SD card.

Sorry that you are having this trouble. In the future you might try importing to your desktop rather than directly into iMovie.

-- Rich

Also, first check to see that the files actually transferred to your external drive, so you have a backup.

-- Rich.

Great! Glad it worked out for you.

-- Rich