This is an odd one. I produce video that goes on a large LED screen which is 20:33 format (320x528 pixels); the player uses MPEG2. All was well with the settings I used in CS3:
I've copied these exact settings to CS4 -
*BUT*
anything rendered from CS4 using these settings produces a yellow bar across the top of the screen, *only* when playing back on the 20:33 screen. (In other words, it's fine when viewed on the PC, but the player seems to be misinterpreting it.) This bar is about 80px high and looks like a bright yellow solid on Multiply mode, i.e. it tints everything yellow... at first we thought it was a screen fault, but it only happens on content I've produced using CS4 - all the CS3 stuff is fine.
So I guess my question is: has the MPEG2 codec changed at all (is that even possible?) between CS3 and CS4? Is there any plausible explanation for this weird behaviour? And what settings could I change in CS4 that might stop it happening?
