In the prospect of clearing up space, I am moving projects from my hard drive to an external. In order to make sure things are moving properly I open up a project from the external onto another computer, different from the one I moved the projects off of. When I open up the project, part of the original footage (.MTS file) does not show up in the timeline. The blue rectangle that represents the footage is striped. When I open up the exact same project onto the original computer from the external everything is fine.
Also, when I was opening up a project from the external to the other computer the "Locate Media" pop up appears wanting me to link all the media, but all the media has been checked off, as if all the media has already been found. Why does it do this?
Check this out: Moving projects to another computer: http://help.adobe.com/en_US/premierepro/cs/using/WS1BF3BAAB-A930-44e3-8DFA-50D5C58A1A1Aa.h tml#WS3D22F379-B6C7-4d8c-9548-26AA3E1EA74F
Likely you have some of the MTS file structure missing. The best way to move projects, IMHO, is to use the Project Manager.