click on the "Firmware upgrade" link and you will download firmware 3.41 . I used it on my American TDk VeloCD 32x which originally had firmware DF41 (which sounds liek beta firmware since it had letters in it ) and this new 3.41 firmware works good . It comes with winflash 2.70 you should download 2.71E here http://www.sannet.ne.jp/BURN-Proof/product/notice-flash-bp15.html
and use that instead . It should work on all sanyo based 32x recorders .