Well... everything is fine when you attach image if there weren't any before. But I want to change my existing cover to another embedded in ID3tag. I've tried first just remove cover.jpg from directory, embed pics into tags and "tracker-processes -r" but it still shows my previous cover. Then I tried removing files (including .mediaartlocal subdirectory) and copy it again into device, restarting it, changing filenames, directories and even tags. Nothing worked... Media player still finds its magic way to find the old cover and attach them instead of the new one.