Apple Final Cut Pro 5 - Manual (Page 1479)

128 Part II Project Interchange
Reel Conflicts
If you create a transition between two clips from the same reel in your sequence,
Final Cut Pro considers this to be a reel conflict, because the resulting EDL event would
be impossible to perform in a tape-based editing system. This is because in a linear
editing suite, a transition requires two video sources, but you can’t put the same tape
in two decks at the same time.
Reel conflicts can be addressed in several ways, depending on the abilities of the tape-
to-tape editing suite you are using:
 B-Reel Edits: In a linear editing suite, transition events that require two different shots
on the same reel can be performed by first copying the second shot of each
transition to a new tape, called a B-reel. Final Cut Pro can automatically create a B-reel
EDL, which you can use to assemble a tape with any necessary shots. The B-reel tape
is automatically assigned its own reel name, and shots in the EDL for your main
sequence are replaced with corresponding shots on the B-reel.
TITLE: MASTER SEQUENCE BREEL1
001 002 AA/V C 02:18:32:07 02:18:56:19 01:00:00:00
01:00:24:12
TITLE: MASTER SEQUENCE
001 002 V C 02:10:42:13 02:11:16:18 01:00:00:00
01:00:34:05
001 BREEL1 V D 024 02:18:32:07 02:18:56:19 01:00:34:05
01:00:58:17
* FROM CLIP NAME: DEBRA ENTERS CAFE WS
* TO CLIP NAME: DEBRA SIDEWALKING