Thanks for the tip, but even if my Mac and Safari use UDF-8 encoding, even if I save he XMF file the gallery still fails to display the accentuated caracters. Unless I am missing something.

My Simple Viewer (used with Lightroom 2) not only can't deal with accentuated caracters (in French) but omits many letters especially the L This is quite strange as the file names and the thumnails are correctly spelled. I use a MacPro and I set the caracter table to Unicode-8. How can I get Simple Viewer to correctly reproduce a file name when displaying the large image?