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  1. Hi,

    I have DVR HD420 and I am seeing intermitent failure reading some movie I did record. I guess it is time to change HD. I guess, I would like to know how to upgrade my DVR HD420 hard drive. Any idea where to start

    Regards,
    Quote Quote  
  2. start reading here

    https://forum.videohelp.com/threads/196949-Hard-Drive-upgrade-for-Pioneer-DVR-520H

    you are going to need a service remote
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