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File recovery by signature (MPEG2) help

Discussion in 'All Other Software' started by NF2K, Nov 5, 2011.

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  1. NF2K

    NF2K Thread Starter

    Joined:
    May 29, 2006
    Messages:
    58
    Morning guys, how are we?

    (edit: apologies if this isn't the right subforum, I don't think there was anything more relevant)

    Need a bit of a hand trying to retrieve videos taken on a panasonic camcorder that takes SD card. Few videos were taken on new SD card and for whatever reason after turning camera off and on again they all show with exclamation marks and claim to be corrupt but repairable. Went through the repair option on camera and seemed to fix them all, all played again, went on to record some more and after a couple more they have all dissapeared.

    Currently viewing the disk (direct access) via WinHex, and seems to have chunks of data floating around in the data pane, maybe the allocation table has become corrupt only hopefully.

    Straight to the point: What sort of headers do I need to be searching for? Manual states:
    Motion pictures:
    • Compression
      • MPEG2 (SD-Video standard compliant)
    • Recording mode and transfer rate
      • XP: 10 Mbps (VBR)
      • SP: 5 Mbps (VBR)
      • LP: 2.5Mbps (VBR)
    • Audio Compression
      • MPEG1 Audio Layer2 compliant (2 ch)
    • Picture size
      • 704 x 576

    Have some knowledge in the area but not too clued up on video format standards, containers, streams and whatnot. From googling it seems header could be in format 0x000001BA

    tried a couple of variations on the 0xBA since that seems to identify the type of data to follow but not luck. Any ideas guys?

    Cheers,
    Riley
     
  2. NF2K

    NF2K Thread Starter

    Joined:
    May 29, 2006
    Messages:
    58
    *bump*

    if no-one here has any ideas any other good places to ask?
     
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