Mystery of .rm files

I really have no words how to explain this but here how it goes.

When I played my .rm file in movie player, it said there is no necessary codecs to play this file and displayed a message like this.



So I just clicked on the search option and look what, I got 'another' message.



Then it played only the sound and not the video. Thought it is ok, feeling that a software can't support every file.
Then I checked on the net, and to be specific Ubuntu forum and came to know about Mplayer, they said it can play all rm files but required some codecs. So I followed what they said, I tried again to play my files and look what I got this time.



I again searched for support and this time got an answer “ install the real player “.

I can't believe Mplayer can't play the files eventhough suggested by many.
But at last, I installed real player and finally met with half-hearted success.

Today I feel like a beginner, which is infact true. I don't know whether it is a bad day or anything else. But one thing I am sure is that I am not going to this leave this battle in the middle.