Just a quick afterthought - bear in mind the schema I proposed is something I only spent about two minutes on. It would almost certainly need some more tweaking/cleanup etc. It meant to communicate a concept, so don't get too tied up in the details of the exact implementation. Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html