There is no difference between recording from Real Player or embedded Real Player.

WM Recorder is the most powerful Windows Media and Real Video stream recorder. Like many other stream recorders it doens't support the obsolete PNM protocol still used for streaming Real Media (although some manipulations with protocol and port number allow to record such media streams in most cases).

Another problem is stream authentication. WM Recorder in the PRO mode can record more streams than any other media stream recorder.

It is very very rare occasion but it could happen that WM Recorder doesn't support your network adapter yet.

WM Recorder has a demo version that you can try. Besides it has a 30-day money-back guarantee.

I suggest you to sign up to a service that has a trial period or money-back gurantee as well 'coz there is no 100% guarantee that you will be able to capture the stream. Of course you can always count on screen video capture software.