OK, I just read on the MSDN that opening a file with "fopen()" and using the mode "a+" will not allow you to over-write data in a file. I have just made an MP3 tag editor, and I need to over-write data with it. I don't know the format of the encoded data, so I can't buffer the entire file to memory and then burst it into a new file, but I do know the EXACT locations of the data I want to modify. How can I do this?
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