Apple Final Cut Express HD: Getting Started - Manual (Page 48)

48 Chapter 3 Capturing Your Video
If you rename a file in the Finder that is used by Final Cut Express HD, the clip goes
offline because Final Cut Express HD loses the link to that file. To make sure renamed
files are online, you need to relink the source media and the files in your project.
For more information, see Final Cut Express Help, Chapter 7, “Using the Browser and
Managing Projects and Clips.”
The item’s name changes,
but the source media is
unaffected.
A red slash indicates the
media is offline.