spaceman works 1050×576 and creates a full height anamorphic
at 720×576.spaceman believes 26 pixel blanking is the reason for this. (13 pixels each side.)
SPACEMAN suggest you duplicate the comp you have finished
and alt drag the new layers into the new comp. This replaces
the image, while retaining the keyframes.
SPACEMAN would like to know if you are working
PAL or NTSC.
SPACEMAN has a sore head from this subject, but may have some
useful info if you are in PAL land.