When using FMLE how does the DVR auto record functionality work?

Hi,

Im using FMLE to send a live stream to my FMS. I check marked DVR Auto Record on it. But I am uncertain if its recording, for how long its recording, and whether I can control this functionality though my FLASH application. Do I edit an xml file in FMS directory to manage where the file is recorded to and for how long its recorded? Can actionscript from a FLASH app in the webroot dir access this file and play it back then return to the live stream? Has anyone found a tutorial on these matters.

I appreciate the help, thank you.