Is there a way to export videos and retain geotag/time changes?

Question

I'm in the process of exporting all my photos & videos from one Mac to another (I want to avoid migrating everything with the migration assistant...) through an external hard drive, which will also serve as my central photo/video location - this way I can lend it to my friends so they can import events to their Macs.
Anyway, I've made substantial changes to my photos and videos throughout the years, mostly around location geotagging and adjusting time and date info.
When exporting my events, I'm choosing the following settings:
Kind:              JPEG
JPEG Quality: High
Include:         Title and keywords (check)
                       Location information (check)
Size:               Full Size
File Name:     Use Filename
This has worked great for all my photos, as they retain all the date/time and geotag changes I've made.
However, this doesn't work for videos... a small file of a few hundred KB gets created for each video, but it's basically just an image of the first frame.
The only way to export my videos in full has been to change the "Kind" option above to "Original".
This works fine to create a file for each video in full, however none of the geotag or time/date changes are retained.
It looks like iPhoto is simply dumping a copy of the original video files without updating the timestamp or geotag info.
Is there a known way to do this with iPhoto? If not, how about other software?
Thanks!
-Marc

Answer 1

I see, thanks for the clarification.
Well that's my current problem actually, as I have a bunch of photos in my library that were imported at times when I did NOT have the "copy to library when importing" setting checked.
The original files (the full-size photos themselves) are all over the place, and some are on my external hard drive. So in order to consolidate everything, I'd like to export ALL the photos from my library to just *one* location.
Trouble is, I won't have enough space on the new MacBook to import everything into the internal SSD...
I noticed when playing around with various export settings that the size of the exported photos vary dramatically based on the "quality" setting, even if the "size" setting is always "full size".
It's even creating files that are larger than the originals if I select the "Maximum" quality setting! But if I select the next lower one, which is "High", the files end up being smaller than the originals by about 25-30%.
Do you know if there's a significant loss i quality when I pick "High" instead of "Maxiumum? (FYI the original files are all JPEG images, taken with various cameras from 2G iPhone and several point-and-shoots, to high-end digital SLR with glass lenses).