The Cambridge Audio DacMagic is an excellent musical upgrade for CD players and DVD players alike, and could improve your PC sound as well.
Cambridge Audio DacMagic Plus Review
Cambridge Audio DacMagic 200M DAC Review, StereoNET Australia
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Cambridge Audio DacMagic review
Cambridge Dacmagic Review
Its called a DAC 'Magic' for a reason - HiFi and Stereo
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Second opinion: Cambridge DacMagic 200M