Quote Originally Posted by Wowik
Quote Originally Posted by TATY
It is the sound represented by Ъ in the Bulgarian language

e.g. Български
I think Bulgarian Ъ is more closer to short О or У then Ы.

So България transcripted as Bulgaria in Western languages and as Болгария in Russian.
No, I didn't say Ъ was like Ы, I said Ы was originally ЪІ.

In Bulgarian, Ъ is like a schwa (Шва по-русски):

http://ru.wikipedia.org/wiki/%D0%A8%D0%B2%D0%B0