FriscoBJ Posted March 21, 2015 Share Posted March 21, 2015 When I copy a DVD to disk multiple times and then compute the simple byte binary checksum of the file contents they never match each other. Using FC /B in a Command Prompt window shows stretches of mismatch one of the files reports all zero bytes and the other file has data at the same offsets. Link to comment Share on other sites More sharing options...
LIGHTNING UK! Posted March 21, 2015 Share Posted March 21, 2015 Then you have a problem somewhere, they should be the same - assuming something isn't changing the data on the fly. If your drive can't read something, it should be erroring out, not returning a bunch of zeros. Turn on the option to make ImgBurn calculate and display the md5 of what it's read and double check the values between reads. Link to comment Share on other sites More sharing options...
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