Correct me if I'm wrong, but the entire concept of streaming is that at a given time a piece of information is being sent out to everyone, and you can't really go beyond that. It's like regular broadcast TV, you can't record that faster, you just have to wait for the stream to be over with.
Edit: What I said applies to live streams, like internet radio, if its a file on a remote server that you are streaming, you probably have the option to right click it and save as and then you can have the file at a much quicker speed.
You could use something like StreamBox VCR or CoCSoft Stream Down to download the files. You have to find the location of the file mms://..... or rttp://...... and then paste it into the program
Sorry havent got any links but Im sure Google'll point you in the right direction
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