Those are funny. I think the "W" one is because they are pronouncing the W like in German. Don't all W's turn into V's, right?

But transliterating Cyrillic script into Latin can be difficult. I've seen the city of Ruse written as Ruse, Rouse, Rousse, Russe. And the "uh" sound in cyrillic can be translated into an "a" or "u" or an "i" -- depending where you're from. My Turkish friends would write, "Az sim tuk" (I am here) because the "i" looks like the "uh" symbol in Turkish, while my Bulgarian friends always used "Az sam...".

I even found that there are multiple transliteration rules in the academic community as I had to transcribe Bulgarian book titles into English for my thesis bibliography. Ugh!