I figured it out finally I had to finalize the disc before I could download it.
I have a video on my handycam on a disc and I can play the video when the disc is in the camcorder but I can't download it to my computer. I have tried using a usb cord and I have tried taking the disc out and putting it in my disc drive but it says disc not supported or blank. I don't know what to do next.

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