Problems with Toshiba SD-R2312 recording 800MB

I am having problems with recording 800MB CDs with the SD-R2312 Toshiba CD-ROM/DVD burner.
The original hardware does not support 800MB and my CD-R are recognized as 97MB (probably the remaining after the counter overflow).
Can this be changed by firmware? Does anyone where I can get it?

Any help will be apreciated. :bow: