Lenovo 40Y8706 manual Write speeds, Known media issues

DVD-R (4.7 GB)	8X Max.
DVD-RW (4.7 GB)	4X Max.
DVD-RAM (4.7/9.4 GB)	3X Max.
CD-ROM	24X Max.
CD-R	24X Max.
CD-RW	24X Max.
CD-DA (DAE)	24X Max.

Write speeds

Media	Write speed
CD-R	24X Max.
CD-RW	4X Max.
High Speed CD-RW	10X Max.
Ultra Speed CD-RW	16X Max.
DVD-R	8X Max.
DVD-R Dual Layer	2X Max.
DVD+R	8X Max.
DVD+R Double Layer	2.4X Max.
DVD-RW	4X Max.
DVD+RW	4X Max.
DVD-RAM	3X Max.
Known media issues
Ultra Speed Plus (US+) CD-RW write	Not supported

20ThinkPad Super Multi-Burner Ultrabay Slim Drive: User’s Guide