MOV (Quicktime) is merely an envelope for your video files. What matters is the codec that was used to compress and save the video files.
You say you want to put these in a Media Player? The Quicktime Media Player should be able to play virtually any .mov file. I can't advise you on Microsoft's Media Player library -- although generally speaking the Microsoft Media Player will not recognize Quicktime files.
What type of camcorder did this video come from and how did you get it into your computer?
Also, what operating system are you using? Have you ensured you have the latest version of Quicktime from Apple.com?
Thanks, but that is not where I am stuck. Microsoft Media Player will play mov on my computer, but will not accept it into its library. I don't care if I use mov or another format - just hoping there is some 1080 format that Premier Elements will render AND Media Player will accept into its library. This is a prerequisite for being shared to my home network for viewing on my TV.
More info: Windows XP Professional 32-bit, Media Player 11, Premier Elements 9.0, Nikon S8100 camera and transfer mov from camera to computer over USB with Nikon software.
All works for 720 video: 1080 MOV -> Premier Elements edit -> MPEG HD 720p -> Media Player library -> Available to TV via DLNA
Stuck for 1080 video: 1080 MOV -> Premier Elements edit -> ????????????? -> Media Player library -> Available to TV via DLNA