TrustedReviews have looked at the Cowon A2 30GB Portable Multimedia Player.
A quote from the article:
Cowon A2 30GB Portable Multimedia Player Review
Cowon's A2 is a highly competent all round media player. It has excellent battery life, its build quality is supreme, it is packed with as many features as you can shake a USB memory stick at, and it has very good all-round file format support. However, it faces stiff and cheaper competition...
Cowon A2 30GB Portable Multimedia Player Review