MovieSheets on WDTV Live

ah ok perfect, to be honest i've never thought to put another firmware but now, watching your screen, i belive that original firmware is just a bit horrible :)
ok i'll learn to do it in the correct way, and moreover i'll search if there is some firmware in my home language too.

What language is that? They do have different language translations. There is a file in the firmware bundle called "500 Custom options" that you have to edit with a text editor and change the language to yours.