If the unit was still recording the file or the file closing was not completed when the unit was incorrectly powered down, and the file was written to the disk, but is not opening as expected when the media is connected to a computer, you may want to consult with Aeroquartet:
http://aeroquartet.com/movierepair/repair
This service has recovered, to the best of AJA's knowledge, all accidental Ki Pro media mis-handlings.
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AJA Video Systems
+1 (530) 274-2048 Intl.
(800) 251-4224 US
sales@aja.com