Who is listening to the over 50 million MP3 players sold last year?"
This article has some answers.
A summary of the original survey can be found here . Vendors and marketers looking to reach the 18-24 might be interested in this too.
At any rate, Ukrainian music lends itself well to mp3 players ... wonder if anyone will ever do a survey on how many listen to Ukrainian music on mp3 players? (Or am I the only one?)