I suppose the API call is technically:

?pbMode=offline&page=m&width=1024&height=768', false, 'sessionID', screen.width, screen.height, true

This may not be in the API documentation, but it is the call that is made when you select to make an FLV version of the recording. Keep in mind that the recording must be done locally, using the add-in, and will still be a real time conversion.

I'm not sure I understand what you are asking. If you are trying to find the API call to make the recording public and set a password, here is where I would start playing.

When you click on the Access Type button to change the permissions of a recording you make a call for :

change-recording-access

I don't see what gets modified by the Flash widget, but it may be (Shown Here):

principal-id=public-access

Now, assuming that the passcode function is the same as the meeting passcode function, I would make the same call, only calling the SCO id for the recording (Shown Here):

meeting-passcode

It may take some trial and error, but if you feel so inclined, you can start tinkering. But, I have no guarantee that any of this will work!

Ah, no. The URL created for the recording is an automated process and is done when you tell the meeting to start the recording. If a custom URL is important to you, then I would recommend that you pull down the recording source files (add /output/yournamehere.zip?download=zip to the recording's URL) and then re-upload the source files to the Content library. Since it will be a new content object, you can create a custom URL for it.