R.E.M. Remixed - Superman (Drum and Bass, Link for Surround Sound Version Inside (Updated))

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This is a link to an ac3 file. That's the only format I've tried that is recognised as 5.1 by my Blu-ray player. Unfortunately that's not connected to my surround sound player, so I can't test it. I can't get any formats to even be recognised on that one. If anybody knows a thing or two about file formats, especially lossless surround sound compatible ones, I'm all ears.