Encoding problem with some Unicode characters

[Baegus]

When I try to process a video with some Czech accented characters (such as "ě", "š", "ž" etc.), the file gets written to the file system with the correct name, but FFmpeg reads the characters incorrectly.

Here's the FS and fferr output with a file named "Příliš žluťoučký kůň úpěl ďábelské ódy.mxf":
[info] run FS.writeFile Příliš žluťoučký kůň úpěl ďábelské ódy.mxf <165155412 bytes binary file>
...
[fferr] PY�a ~lueouk��H 򰿬 ?ᢥlsk頳dy.mxf: No such file or directory

It seems like FFmpeg itself expects some different encoding.

[Baegus]

It also seems like the non-breaking space character (\u00a0) is causing problems for the FS.

[NAMU1105]

Same issue happens with Korean too :(

[cainiaokan]

Same issue with chinese characters.

[JugoRocks]

same issue with audio files metadata.

any luck solving it?
must be a way to make it work with utf8
maybe writing custom config file and setting some thngs....