Do a multi-trim and output each trim separately.

Thanks, Jimbo. I just started using PoerDirector last week, so please bear with me. Under which menu is multi trim?

No problem.

Make sure your final video (4Gb) is on the timeline.
Click anywhere on the video and a set of editing buttons pop up just above (Split, Modify, Trime, Fix... and something else).

Choose Trim, then Multi Trim.
You could do it with the Trim (single trim) but you have to repeat the process for each segment you want to chop the video by. Might be easier if you can't get your head around multi-trim. Have a pen handy to write your IN/OUT time codes.

In multi trim, stretch the blue "bracket" so it runs the length of the film. Then click the IN-OUT points for each segment you want in turn (do this in one sitting).

For each IN point mark an OUT point, otherwise you just get the IN point shifting forward. After your OUT point, move forward one frame and set a new IN point and your next OUT point. Repeat for each segment.

These become your segments.

Click OK and you should see each segment as a sprite/asset in your library. Much quicker than single-trim. Don't bother with the scene detector.

The process of outputting (rendering) is a manual one.
Run it through the renderer for each segment, swapping them on to the timeline, then hitting the PRODUCE button and creating the video file that way (go backwards and forwards between EDIT and PRODUCE to do this).

Watch out you don't re-compress your video and lose quality. Just a heads up. If in doubt, keep compression quality to 100% or something similar. If the option isn't available, don't sweat it, but check the footage again for quality control.

Hope this helps. I'm new to PD too. Just rumbling my way through it before making a decision to purchase. I've worked with other editors, but PD seems to be the quickest.

Just a quick heads up.

If your audio gets out of sync after rendering a trim, check you're not trimming MPEG videos with MPEG audio. I've had it happen to me using other editors.

The fix for me was to render the MPEG with a different audio, for some odd reason.

I've used PD already on a project to do this and it scraped by fine.

No guarantees! (disclaimer)!**

**I found out those editors were dropping frames, which caused the audio and video to get out of sync. Mileage may vary.