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In today’s O’Reilly Digital Media newsletter, David Battino has a piece on how you can burn your own surround-sound DVDs without spending a fortune on encoding software.

In short, you load six mono WAV files into an AC3 encoder and then drag the resulting file to your DVD-burning program. Depending on the encoder’s capabilities, you may need to interleave the six mono files into a single multichannel file first. And in Roxio Toast, which we’ll use here to burn the DVD, the secret is to Option-drag the AC3 file.

DIY Surround-Sound DVDs – Link