CD-R, CD-RW, DVD+R, DVD+R Dual Layer, DVD+RW, DVD+RW Dual Layer, DVD-R, DVD-R Dual Layer, DVD-RAM, DVD-RW, DVD-RW Dual Layer ThinkPad T400 T400s T410 T410i T410s T410si T420 T420i T420s T420si Laptop ThinkPad T500 T510 T510i T520 T520i Laptop ThinkPad W700 W700ds W701 W701ds Laptop ThinkPad W500 W510 W520 Laptop ThinkPad R400 R500 Laptop ThinkPad X200 X200s X200i Laptop & Tablet - only when used in the dock / ultrabase ThinkPad X201 X201s X201i Laptop & Tablet - only when used in the dock / ultrabase ThinkPad X220 X220i Laptop & Tablet - only when used in the dock / ultrabase