I am running OS 10.3.9 and Quicktime Pro 7.0.1 on a G3/300 Mac.
I noticed that the fast forward/reverse controls do not work either in
the player or the pull down menus. Page up/page down does not
word as per the instructions for the fast forward/reverse vs the arrow
keys for slow forward/reverse. The volume is also very soft even
with everything maxed out. If I run the .avi file in realtime on a PC,
the volume seems OK.