Currently Being ModeratedJan 23, 2014 10:07 AM (in response to Ernie Barojas)
Are your imported videos on an external drive? Aperture can only play videos, that are managed and on the internal drive. If you want o play them in Aperture, use "file > Relocate" to move them back into the library.
Currently Being ModeratedJan 23, 2014 10:40 AM (in response to léonie)
My videos are IMPORTED into the Aperture Library on my local hard drive. But that is not the problem at all.
The problem is that the PREVIEW IMAGE in my Aperture Library is a BLACK BOX with an Exclamation Mark ! that says "Unsupported Video Format", yet the video CAN be exported and played in Quicktime.
I just want the PREVIEW IMAGE of my VIDEO FILES to have a PREVIEW IMAGE so I can see what video it is.
Currently Being ModeratedJan 23, 2014 11:49 AM (in response to Ernie Barojas)
Aperture does not support all video formats that can be played in Quicktime. And unfortunately, you can only create thumbnails for the videos from the key frames, if the format is supported and you can open the video in Aperture's video editor.
Here is a list of videos formats that shoud be supported, there may be more:
For some posters it helped to install additional video codecs - Perian or Flip-4-Mac;
Just a hunch: Last year, there was a weird glitch: when running cleaner applications a system cache containing an essential helper file required for viewing videos as accidentally emptied. Have you run any utility to safe space, that might have cleaned caches? Then try, if restoring /System/Library/Caches/com.apple.xpchelper.cache will allow you again to play movies.
See this post by andyBall_uk: Re: Import video to Aperture library on Mountain Lion
Currently Being ModeratedJan 23, 2014 3:23 PM (in response to léonie)
I did a search on my computer for com.apple.xpchelper.cache and there was no file anywhere on the computer like that. I looked in the /System/Library/Caches/ and also could not find the file there.
I found a script to run to re-create it and I rebooted and the file still is not on my system anywhere. The script I ran was:
sudo /usr/libexec/xpchelper --rebuild-cache
And Terminal asked me if I knew what I was doing and asked for my password... I rebooted and nothing changed. File still missing.
Any other advice?