eureka,
Your fix to js compilation of media player isn't complete

See screenshot. However it might be not your fault, but Amazon's... I cannot find where this MessageFormat stuff is defined, so it might even be built-in which would be bad...
And could anyone tell me where this "Off" button resides? I think I saw it as a picture, so could be hard to translate, but feel free to prove me wrong.
BTW, I have an issue with USB plug screen containing no text at all, and the same issue reported by other users of ru_RU locale. Any ideas?
UPD
A bit of searching lead me to conclusion that they might be using MessageFormat class from icu4.jar:com.ibm.icu.text. If that class has a bug translating UTF-8 text to displayed text then translation of this element in non-latin encoding might be doomed... unless we patch this class