Friday, May 6, 2011

DVD+RW apparently blank

I recently had a DVD+RW for recovery.  It was from a camcorder and had probably been reformatted.

On initial examination the start of the disk was OK, but the majority was blank, ie all the sectors were filled with zeros.  I could read the sectors and no error messages were displayed.  Every indication was that the disk had been blanked, as if thee had been a full format.

When the disk was examined on hardware designed to read blank disks it was very interesting that the disk was not blank.  There was a significant amount of video still on the disk and CnW software did a recovery, and then generated a new video disk.

The concern is that standard hardware gave every indication that the disk was blank - so do not rely on standardard hardware if there is a possibility that the data may actually still exist.  CnW Recovery services will always assist anyone with such possible disks.

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