Exporting a video that is 3 minutes and it keeps saying that it is 43 minutes

Question

This seems like a strange problem. I have been duking it out with the frequently asked questions forums and nothing seems to address this problem.
Just to give you an idea of what I have going on.
I am using a mac book pro with OS X version 10.6.8 I have 2.4 Ghz intel core 2 duo and 4 GB 1067 MHZ DDR3     
I have edited some video together of an interview. The original clip was about 20 minutes and I have cut it down to around 3 minutes 37 seconds. I made sure to go through and delete any scraps that would have been hanging out at the end of the time line. I have also tried putting timeline markers in at the beginning and end of the project. I have also pulled the grey start and finish bars to just the right places. at 00:00:00 and 03:37:14.
I have tried exporting other videos and everything worked just fine. But for some reason it keeps saying that this video is 43 minutes long and it adds 40 minutes of black to the end of it as well as making the file size really big. I am sending this video to a potential client and I need to keep it under 2 G.  I can't send it with 40 minutes of black on the end.
I am using these settings
presets NTSC DV 16:9
file type Quick Time
frame size 720x480
frame rate 29.97
audio settings 48000 Hz stereo 16 bit
Duration 43 minutes 16 seconds.
The worst and best thing is about this. I figured it out at the end of typing all of this
So if anybody has this problem
You have to check the box the says work space only

Answer 1

For the crashes, Reed, I would create a new Discussion/Thread, list your full computer specs., and then your Project specs. with complete detail of your Assets. This article will give you tips on the info that would be so useful: http://forums.adobe.com/message/4515849#4515849
Most users do not experience crashes, though too many do. The normal causes, and in this order are:
System
Assets
Project settings
Also, be sure to list any error messages, that you receive with the crashes and hangs. This article goes into more detail, but it is more oriented to PC's, so only some will apply to a Mac: http://forums.adobe.com/thread/792580?tstart=0
Good luck, and hope that we can help with that "rogue" Orphan here, and then the crashing in your new thread.
Hunt