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So continuing on here, I want to talk to you about as I mentioned before how
video is not stored in the PSD file. Now this is really un-Photoshop-like
behavior. With every other type of file that you bring in, whether it's an image,
maybe a JPEG or a TIFF, even 3D objects, they are actually stored within
the PSD. So if you hand somebody off to another company or to some other
computer and if you give them that PSD file, it's self contained. Everything
that they need is in that PSD file. With video however, that's not the case. And
it's not just this way in Photoshop. It's that way in all video applications.
The reason why is because video files are really big. Let's say you
had a 2 GB video file. If you store that in your Photoshop document, well now you have
duplicated that file and so you have a 2 GB video file in your hard drive
and now you have a PSD file, Photoshop document, that's at least 2 GB as
well. That would start to add up fast and it wouldn't be fun for the space in your
hard drive. So what video programs do instead is they
only maintain links to the source footage wherever that it is. So you want to
be careful that when you import video, it's in the right spot from the beginning.
I mentioned in the last movie that this footage is from an image sequence
here, but if I were to move, delete, or rename any of these clips or the folders
that they are in then Photoshop would have a hard time finding this footage
and we would have a broken link. We will talk later in this training series
about how to fix such broken links. But for now, just be aware that while you
cannot store video inside the PSD file, it does open you up for a little bit more
experimentation. You could bring a bunch of different video files into
Photoshop without worrying that you are going to have this colossal PSD because
of it. Because again, the PSD file is only storing the links to the video files
not the actual video files themselves.