Is your ThinkPad not able to read DVD's? Or maybe the drive itself won't open. Here is a [https://www.ifixit.com/Wiki/Lenovo_ThinkPad_T410s_Troubleshooting|guide] to diagnose any of these problems. Usually, the problem is either the drive tray or the motor. In order to fix those, you will need to use this guide to remove the DVD drive.