Dissappearing characters in youtube-dl, ffmpeg, and windows - windows

Question

so what happens is that if the video title has a symbol that isn't supported by your current locale then ffmpeg won't be able to get to that file properly.
Here's one example
►2 HOURS BEST MELODIC DUBSTEP MIX APRIL 2013◄ ヽ( ≧ω≦)ﾉ
as you may or may not be able to see, lots of symbols from unicode.
The problem is that in cmd and ffmpeg, though cmd can see
►2 HOURS BEST MELODIC DUBSTEP MIX APRIL 2013◄ ヽ( ≧ω≦)ﾉ
ffmpeg only sees
2 HOURS DUBSTEP_DRUMSTEP MIX AUGUST 2013 ヽ(≧ω≦)ﾉ
This is the exact error message (i'm using youtube-dl)
[ffmpeg] Adding metadata to 'C:\Music\ToBeDone\2014-06-01\►2 HOURS DUBSTEP_DRUMSTEP MIX AUGUST 2013◄ ヽ( ≧ω≦)ﾉ.mp4'
ERROR: C:\Music\ToBeDone\2014-06-01\2 HOURS DUBSTEP_DRUMSTEP MIX AUGUST 2013 ヽ(≧ω≦)ﾉ.mp4: No such file or directory
ERROR: WARNING: unable to obtain file audio codec with ffprobe
After some research i've determined that by changing the system locale you can change which symbols cmd can support.
However
ヽ
Used to appear as a box in a question mark in United states locale. In japanese locale it appears as it does on your screen right now.
the problem with
◄
is that even though it's not appearing as a question mark in a box (it's appearing as how it should be), ffmpeg (or cmd) can't detect it properly.
(Refer back to the error message, i'll repost it below.)
[ffmpeg] Adding metadata to 'C:\Music\ToBeDone\2014-06-01\►2 HOURS DUBSTEP_DRUMSTEP MIX AUGUST 2013◄ ヽ( ≧ω≦)ﾉ.mp4'
ERROR: C:\Music\ToBeDone\2014-06-01\2 HOURS DUBSTEP_DRUMSTEP MIX AUGUST 2013 ヽ(≧ω≦)ﾉ.mp4: No such file or directory
ERROR: WARNING: unable to obtain file audio codec with ffprobe
So as you can see, I think cmd passed on the symbol correctly to ffmpeg seeing from the adding metadata line, but when it actually does the operation ffmpeg loses
► and ◄
Could this be a bug with ffmpeg? MY workaround so far with incompatible symbols was to change the system locale, but I don't think i can do that with these two symbols...
These are the unique characters that i need to have a locale that supports
Ö
◄ ヽ( ≧ω≦)ﾉ
( ͡° ͜ʖ ͡°)
(_≧∇≦)
†
【
More info on the problem in general
https://github.com/rg3/youtube-dl/issues/2999
and this is what's going on (Batch Script)
#echo off
setlocal
cd C:\youtube-dl
set /p "var1=Enter URL: " %=% pause
if defined var1 set "var1=%var1:"=%"
set "var2=%date:/=-%"
set "var3=%%(title)s.%%(ext)s"
youtube-dl "%var1%" -ci -o "C:\Music\ToBeDone\%var2%\%var3%" -f best -x --no-mtime --add-metadata
youtube-dl "%var1%" --skip-download -ci -o "C:\Music\ToBeDone\%var2%\Thumbnail\%var3%" --write- thumbnail
youtube-dl "%var1%" --skip-download -ci -o "C:\Music\ToBeDone\%var2%\Description\%var3%" --write-description