What is a .rtm file and how can I play it?

[creedo]

I used WM recorder 14 to capture a live stream. I notice it creates temporary files in the "SWF Extras" folder with a .rtm extension. They're clearly my captured video (based on filesize). It also makes a bunch of .ini files.

Anyway, if I manually stop a stream it will make the .rtm into a playable .flv. But if the broadcaster stops the stream on their end, and I don't babysit the program and stop recording before this happens... I get this useless .rtm file and I can't play it.

I tried renaming it to .flv but no go. Media player classic home cinema isn't recognizing it.

Did I mention that when I exited the program, it deleted the .rtm file (and a copy of the .rtm I made in the same folder, for experimentation) but helpfully left all those usless .ini files? I hate this program, except it seems to catch streams that other programs miss.
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So yeah, short version: in the future, if I end up with one of these 500 meg RTM files... what can I do with it?