Add a feature to the Ingest process to verify that the copy of source to the destination has been completed correctly. I.E. do a CRC or other similar file check on the source file(s) and compare them to one or both destination drive file(s). For more ideas on this take a look at what Beyond Compare does. This should probably be enabled/disabled with a checkbox for those that don't want it or don't want to take the extra time/compute.
Thanks!
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Phil Kelly