That might be difficult, because this is a computer DVD burner. They don't really fit in DVD recorders because of their size. Generally, flatter DVD burners are installed there.

With a SATA-USB converter including power supply, yes, theoretically possible. -> ICY BOX IB-AC704-6G, Adapter 2.5"/3.5"/5.25" to USB with power supply But why?

This does not actually depend on the drive itself, but on the BIOS and the medium inserted in the drive (CD or DVD). It is normally always possible to boot from a DVD drive.

No.