[plug] Error 25: Disk read error

[Lyndon Maydwell]

not sure if this is correct, but I've heard that dd sometimes has
problems when used as a copy util for drives, and that ddrescue is the
tool designed for that purpose.

sys-fs/dd-rescue
      Latest version available: 1.10
      Latest version installed: [ Not Installed ]
      Size of downloaded files: 16 kB
      Homepage:    http://www.garloff.de/kurt/linux/ddrescue/
      Description: similar to dd but can copy from source with errors
      License:     GPL-2