You can find the following two dumps below:
SONY DVD RW DW-Q58A UFS4 Sep29 ,2006 (UFS4-2)
SONY DVD RW DW-Q58A UFY2 Oct02 ,2006 (UFY2-2, NEWEST firmware)
In all honesty, this is an ancient drive, which most likely lacks any / any decent writing strategies for today's media. You'll be better off by buying a cheap, newer generation, IDE replacement drive from eBay, preferably one which can be moded and for which there are plenty of firmwares around.