# ST1000DM010 vs ST1000DM014: CMR, SMR, Speed and Buying Guide

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Choose by workload and condition. DM010 is CMR and better suited to repeated sustained rewriting when the unit is healthy. DM014 is SMR, newer and commonly easier to buy new, making it suitable for light desktop storage and mostly-read data. A used DM010 is not automatically better than a new DM014.

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