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Controlling multicast client buffer behavior with URL modifiers

Windows Media Player 9 Series or later contains improvements that add efficiencies to the network connection process and minimize startup latency. This allows you to add a URL modifier that specifies the minimum buffer time to the path of a multicast stream. The URL modifier specifies a value for the Network Buffer Time property. The property value is the amount of time in milliseconds (ms) that the Player will buffer before playing the multicast stream. To specify the minimum buffer time for a multicast, add the following modifier to the multicast information (.nsc) file URL:


For example, the following multicast URL uses a modifier that sets buffer time to 500 ms.


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