I noticed when you check an edit of an album submitted, the title goes automatically to capitalize every letter, but in the case of special characters like é it stays as it is. I have no é capital letter so I can't edit it. Check this http://www.metalstorm.net/bands/album.php?album_id=62256&band_id=6983&bandname=Extremoduro for instance

Yes, this is beyond the abilities of the responsible php function (and I'm not writing a custom one). Btw, if you want to capitalize a character you don't have on your keyboard:

1. Copy the lowercase character
2. Paste it into Google as "capilar é" (for example)
3. Find the capital letter in the results, copy/paste in into the album title