Firmware update for HP 300i?

I see no firmware updates for the HP 300i anywhere, only for the 300c and 300n. Are there any?

Yes there is an update for the HP 300i drive. This update will allow it to read -R DVD formats easier.

Thank you. I finally found it on HP’s Web site:

It should be either a n (NEC) or c (Philips) model.
n models are upgradable, because they are NEC 1100 OEM drives.