I made a PDF with Indesign CS3. I add some quicktime movies in some pages. It used to work but no more. My quicktime files are .mp4 encoded in H264 video, AAC audio (in case this might be a conflict)
When I open in Acrobat Reader latest version 9 or even an older version 7.12 it doesn't play and gives a message:
Cannot play media clip because it would violate your security settings.
I checked the preferences in Acrobat so it won't stop. I tried a 3rd computer, same thing doesn't work.
Preferences in Acrobat Reader/Trust Manager is clicked on to "Allow opening of non-PDF file attachments..."