Ok Thanks for the reply.
First I am a new Apple user...Just so you understand
Yes, a 5 minute presentation would be 10 minutes. or In my case a 28 minute presentation becomes 58 minutes with Quicktime.
I have used various work flows when transferring to quicktime. I have used Recorded timing/full quality, large, Include slide show recording.
Fixed Timing and placed 1 sec slide and build duration...
Not sure what CODEC means?
I'm using Macbook Pro
Software OS X 10.8.2 (12C3012)
Keynote 09 version 5.3
I have spoken to Apple and they delted some files and that didn't work...The final suggestion was buy a screen capture app....
I also have a email from Apple about this "thread" and they have asked for the files. So that sounds interesting.
If it helps...I tried to do the same in Powerpoint and it failed....
I have spoke
try my normal QT export workflow using a new small test file:
start a new presentation with 3 slides, each with a single rectangle shape placed in different positions
file > export > Quiktime
playback > self playing
slide duration 5 secs
repaete > none
format > custom
video > full size
compression type > H264
quality > medium
enter a name
if this works export your original project with these settings
please post back your result