Corrupted DVD-RW VR disc that has working video

9th Jun 2007 16:41 #1

Member

Hello,

I am using a Panasonic VDR-D105. I have a disc I recorded on it that is DVD-RW and used with the DVD-VR recording format. Unfortunately, the file VR_MOVIE.VRO has a CRC (cyclic redundancy check) error somewhere inside of it because when I use NeroVision Express's "Import DVD-VR disc" function (which is the only way I have found to import the video to separate MPEGs in a folder that I can use and I believe uses the VR_MANGR.IFO metadata file to correctly separate the clips), in the middle the import it says that it failed to import the disc. If I try copying VR_MOVIE.VRO to the hard drive, Windows gives me the CRC error at about relatively the same point in the copy process.

Fortunately, if I kill NeroVision Express when it gets the error, I can still keep the first 6-and-a-half or so clips, and the MPEGs are fine.

When the DVD is in the camera, everything is fine and works as usual; I can browse and play all my clips without a problem. When I put the mini-DVD into the computer, sometimes Windows can't even read it. Today it could though. I seem to get better results in reading it when I load the DVD through the camera by USB connection (as a USB mass-storage-device CD drive) than the computer's own CD drive -- this at least always lets me read the disc. I just tried using Nero ShowTime to play VR_MANGR.IFO (in which it plays the video stream in VR_MOVIE.VRO but separated by chapters), and it looks like it's playing just fine, even after the CRC error point. I can also use ShowTime to play VR_MOVIE.VRO itself (entire video stream as 1 chapter without the metadata), but the program seems to freeze at relatively the same point as the copy/import does. And even reading the disc through the camera, the Windows copy/NeroVision import still fail due to the CRC error.

Here's the reason I say that I got 6 1/2 clips: I took a look at my 7th MPEG file (the last one), and compared it to the 7th clip when browsing the disc in the camcorder OR playing VR_MANGR.IFO in ShowTime (same difference). The 7th MPEG file is cut short! Therefore I surmise that the CRC error is somewhere within the 7th clip.

So you see, all the video can be read fine when reading it in the context of the metadata file (VR_MANGR.IFO) (which only the camcorder itself and Nero ShowTime NeroVision Express can do (NeroVision Express to a degree, yet it still fails)). It would seem that there is just a minor file error yet nothing is actually corrupted, so in theory there should be a way to recover it. Can anyone please help me recover my video so that I can import it? Is there a freeware program that can import DVD-VR using the VR_MANGR.IFO metadata?

Thanks for any help