Original File Name, or Localized Name?

[Warechu]

I was wondering how I should name the file submission if all the files use the Japanese name for the character? Should I just use the character's localized name, should I use the original Japanese name because it is in the files? Or should I put both names in, and separate them with parentheses? There are too many files for me to just change the name of all the files to reflect localization name changes, and it doesn't feel right to change the file names from the originals. This may be slightly dumb question, but I want to know how I should go about naming the submissions as to not cause any confusion.