Replacing Matshita Drive in Lenovo PC (Matshita UJ-850S)

[qanda]This thread is about the Matshita UJ-850S. Click here to see full specs[/qanda]OK - having read all the forums, I understand that making a Mat(su)shita UJ-850S region free is not possible.

So I would like to replace it. I have a Lenovo R61 PC, which has an ultra-slim bay, but it has a little “cutout” where the switch to remove the DVD drive is.

I don’t care how fancy the replacement drive is - just that it is flashable. Has anyone found a replacement DVD multi recorder that will fit into a Lenovo?

Thanks for everyones time and help