the real reason is that - catalyst ignores any quicktime movie frame rate - and plays back movies at the frame rate in the frame rate menu-

there are many reasons for this-

1. vga and dvi screens do not work at exactly 60Hz or 75Hz- playback has to be locked to what the screen works at -

2. All in and outpoints are specified in frames - this is the only possible way to specify time in any way that works with different file frame rates - or is accessible and uniform on multiple different lighting consoles-

3. People can and do mix up movie frame rates and different speeds of content-

4. playback of video should at all times play all the frames in a movie- and any other system than a frame based system will visually drop frames-

at any time in any place in order to preserve the timing of the movie-
for almost everyone this is not what they want-
this is what real world video based systems will do when doing time conversions.

Quote Originally Posted by Mr_P View Post
There can be a number of factors that may cause YOUR movie to glitch, if its just a web download, aside from your hardware or any catalyst settings.

Better to create a small file yourself in FCP in the the correct codec and at the corect frame rate for the desired output device you will be using.

I can send you a demo movie if required for testing - but first - can you confirm your setup, output device and refresh rate (led / projection etc) and required format and frame rate...

When playing content with audio - catalyst prioritises the audio (if set to 'play audio' playmode). You should set the playback rate to match the movie.

For best results on 'most' systems - you should ensure that your movies are rendered as 'Apple intermediate Codec' (AIC) at the required frame rate (eg 25 or 30fps) and that you playback from a Solid State Drive (SSD)

Do contact me if you require further help /info

Simon