I'm guessing this might be on Windows? IIRC, Unicode filenames on Windows are a bit of a mess. See all of the replies in threads such as Accent file names issue and Files with arabic names. Otherwise, please provide a Short, Self-Contained, Correct Example - including runnable code and instructions on how to create files with names such as the ones you're having trouble with, so that the issue can be reproduced.

In reply to Re: How to know to know if string is utf8 encoded or decoded. by haukex
in thread How to know to know if string is utf8 encoded or decoded. by Anonymous Monk

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