I'm trying to put together some smallish mp4s for FastStart on download.

I'm confused with the MP4Box parameters. It looks like '-inter' is used and "all meta data are placed first in the file...." but if you also use the '-flat' parameter for "faster storage" it says that "all meta-data is placed at the end of the file." What happens if you specify both on the command line?

Also any general consensus for the duration parameter of -inter? I've been using 300. My files are on average about 2Megs in size if that makes any difference but some as small as 500K and some as big as 10M -thx-