Audio import crash with accent in files name..

Hi,
I try to import around 100 mp3 files with Audio import module, but it crashed after 10 good import.
The 11th was with accent (and spaces) in the file name.

It's crashed with this URL :
http://domain.com/batch?op=start&id=56

And the error message is:
"Une erreur s'est produite. /?id=&op=do

(I use it in french)

And now I'm blocked, I can't import Mp3 files any more, it's the same error message I receive.
Also with good files name! It seems to remember the "bad" file.
I flush the cache, Made "Update.php".. but I've still got the Problem.

How can I fix it?
Ideas?

Thanks.