It probably happens from getting rid of spaces and parentheses and other characters I don't like in filenames. Books where the filename has A (editor), authors with "," between them and similar
replace space, #, (, ) and similar with underscore and you end up with ",_". Well, don't do that, then. Sure.
But it's the first time I've seen a pair of characters cause a problem where they don't cause one on their own as far as I was aware.
|