Video scan of hard drive
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UNDER DEVELOPMENT!


This wizard is designed to recover specifically video files from a hard disk drive.  CnW has several wizards for video recovery, but these are designed with camera memory chips in mind.  The videos on these chip are often out of sequence, but at the same time, camera memory chips are of limited capacity, eg 64GB.  Hard disk drives are commonly 2-3TB, and growing every year.  Also, files on the hard drive tend to start as sequential files, but can still be fragmented or damaged.


For camera memory chips use the MP4 wizard


The wizard is used to scan the hard drive for specific types of video file, save, reconstruct and possibly repair.  Hard drives tend to save files in sequence, and so recovery is very different to memory chip[ recovery


Current status - September 2020


The drive will scan and search for video files in certain formats


The first version that has been implemented are files that are saved as FTYP-MOOV-MDAT, and ones that have video frame lengths saved at the start of each video frame.  This could be a Canon style of video.  The program will detect the file start (a FTYP atom) followed by the MOOV.  It will process the MOOV to find the start of each frame and then search for video frames in the following data.  It assumes that the file is  in sequence, although it may be fragmented.  ie it only searches forward for the next possible video frame.