Newer firmware ? http://drivers.softpedia.com/get/FIRMWARE/...ware-MO02.shtml
EDIT:: Hmm, that newer firmware doesn't have any write speeds for that media in the firmware file. You could use MCSE and move the write speeds from another DL media to the S04, but there is no way to say if that would work.
Get some decent media like verbs and this sort of thing isn't an issue