Some FLV streams of ARD Mediathek site can't be recorded.

[Steve56]

I was trying to record the following stream of the ARD Mediathek:

http://www.tagesschau.de/multimedia/video/video457346.html

If RMC's recording is set active, the FLV stream isn't even playing
inside the browser's window, the player window just hangs with the
loading spinner anim.

Most other streams of the ARD Mediathek can be saved, though.

Thanks for any info!

-Steve56