Some older ASUS drives use a DOS-based flasher:
The ASUS firmware utility will list all ASUS optical drives detected. It will show: asus drw 24d5mt firmware update
Unlike GPU or BIOS updates, you should not update optical drive firmware "just to have the latest version." You should only proceed if you are experiencing specific issues, such as: Some older ASUS drives use a DOS-based flasher:
Address specific glitches where the drive might not wake up from sleep mode or fail to recognize certain disc formats. asus drw 24d5mt firmware update