visual binary diff, visually compare binary files

 Visual Binary Diff (VBinDiff) displays files in hexadecimal and ASCII (or
 EBCDIC). It can also display two files at once, and highlight the
 differences between them. Unlike diff, it works well with large files (up to
 4 GB).
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 VBinDiff was inspired by the Compare Files function of the ProSel utilities
 by Glen Bredon, for the Apple II. The single-file mode was inspired by the
 LIST utility of 4DOS and friends.