Apple Final Cut Pro 7 - Manual (Page 446)

How Clips Appear in the Timeline
Before you begin editing and arranging clips in a sequence in the Timeline, it’s a good
idea to look at how clips are represented when they’re first edited into a sequence. When
you edit a clip into the Timeline, an affiliated copy of that clip is placed in your sequence.
The clip in the Timeline looks like this:
Video clip item
Audio clip items
An underline indicates
items that are linked.
In the example above, a clip containing one video item and two audio items was added
to the sequence. Each of these items is called a clip item.
The video clip item is placed in track V1 of the Timeline, and the two audio clip items are
placed in tracks A1 and A2, respectively. Each of these items is named after the master
clip in the Browser from which it came. All three clip items are linked together, which is
indicated by the line under each clip item name. Linking clip items together keeps the
items in sync with each other.
446 Chapter 31 The Fundamentals of Adding Clips to a Sequence