What I actually ended up doing was changing one of the video settings (while getting ready to “render as”) to the NTSC DV setting when it previously said “None.” I thought since that was mentioned in the Default setting it didn’t have to be set from the drop-down menu. It saved as a bit more than 1 GB.
Figuring out Vegas one little, tiny bit at a time…
But this forum is a huge help. I’m so glad it’s here. I’m very, very green when it comes to editing.