[Craig Alan] “how [could] the media (without using aliases) be in both libraries but not double the space”
Think of the hard disk as a shed next to your house, and in that shed is a ladder (your data).
In this situation, an alias would be a sign at the end of the driveway with a picture of the ladder and an arrow pointing toward the shed. A hard link would be adding another door to the shed, so you can access the same ladder from two different entrances. Sealing up a second door doesn’t change the ladder.
When you create a copy with the Finder, it goes down to Home Depot and buys another ladder to put in the shed.
FCPX opens new doors when you copy media from one Library to another on the same drive.
At least, that’s how I understand it…
Doug Metz
Anode