Firmware update with Asus crw-4012A

Hi all,

I’ve seen that I can increase my burning speed if I make a firmware update with Mtkflash. So I’ve downloaded the programm, installed it, and searched for a firmware file, but I only found an update from Asus(at their homepage) which is in the asf-format which doesn’t work with Mtkflash. Has anyone of you a seen a firmware update in the net for the asus crw-4012a that is in bin or hex format? Thanks for your answeres.