In finnish language we need to use a lot non-ascii characters like ä and ö.

It seems that the Audio Import fails to read non-ascii characters from filenames:

1_char_test_�.mp3

I could bypass this by not using non-ascii chars in filenames, but the Metadata saving in edit form fails with non-ascii chars also.

i use Drupal 5.2 and Audio 5.x-1.x-dev