Fixing volume usually does not require re-recording. Any sound editor can do it. Takes time, though (normalizing that many files automatically may give an unpredictable result for some, and you are likely to miss it).
That's how far a metaphor gets you when you start with «друг». In Russian I would imagine a brigade of armed beardy men. I think it roughly means "company" in Slavic languages that have a similar word. Then each of them makes it more specific :)