Firmware Upgrade for OEM Products?

Am considering buying the Sony DRU500A DVD±Rewriter, but was offered the Sony DWU10A, which is the OEM version of the DRU500A. Am wondering if DRU500A’s future firmware upgrades can be applied to 10A.

Any advice is appreciated.

There are hacked updaters to convert back and forth between older versions and you can update once you’ve converted.

Feng here is a link for the hacked updaters should you need it