why real player

well see i think the .rm and .ram files are the most ligth weigth files on the internet which consumes less space and gives high broadcasting ! so it takes less time to download the .rm file and same with playing it online ! so all the internet online radios or alike chooses real player as their primary player !

I think its rm extension has low size thats why most sites prefer real player

Yes I ghave been thinking the same. Flash or Windows media player are the way to go.