MFC: Fix broken playback capabilities to prevent impending disaster.      The minimum / maximum speed was way too low / high!
MFC: Fix broken playback capabilities to prevent impending disaster.
     The minimum / maximum speed was way too low / high!

     minspeed =   2000 - is this for real ?
     maxspeed = 767999 - is this for real ?????

     Wrap everything into 8000 - 48000 boundary, just to be safe.

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