In a constantly changing battle with Apple Computers, Singapore-based Creative has filed a formal complaint with the U.S. International Trade Commission. The crux of Creative's battle against Apple revolves around a copyright issue.

Creative asked the commission to consider blocking imports of the iPod for infringing on its system of accessing and organizing music on digital music players. Creative accuses Apple of downright copying their system, the suit being the result of a stalemate in discussions between the two companies earlier this year.

The agency is expected to make a ruling within 45 days. We'll be watching this one closely.