Hello, download this PDF file
go to page 15, there is a picture as to where you must modify your DVD burner.
I have the same Sony DVD burner , and my Toshiba also showed IDE#1 error. It is not possible to flash the burner to fool the Toshiba into accepting it, i tried all the tools you mentioned.
You have to open the burner and connect pin 47 (CSEL) to ground (pin 45) Of course you can also dismantle the laptop and modify there if you want to keep the burner untouched for warranty reasons. Mail me if you have any more questions.