I am trying to work on my video application sample, they request the videos not to be more than 30 seconds. OK, my duration is exactly 00:00:30:00 and has been refused (error message says "video's duration must be between 5 and 30 seconds"), then I reduced it to 00:00:29:23 and I still get the same message!
Anybody knows what is the "real" duration the video will be accepted?
Thanks!

29" worked.

   This is just one of the many bizarre hurdles you have to jump through with Istock video. The whole thing has a soviet era clunkiness to it, and 30 second clips not being accepted is just one of the joys that await you.