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Increased storage is basically the main difference between these 2 models. For further details please see the marketing specifications below: ICDPX312D: http://www.docs.sony.com/release/specs/ICDPX312D_mksp.pdf ICD-PX333: http://www.docs.sony.com/release/SPECS/ICDPX333_mksp.pdf
Sorry, there was a problem. Please try again later.Works just as well, I have both.
Sorry, there was a problem. Please try again later.I can't speak for the other recorder but the battery life sounds and background noise are fine
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