Dell studio 15:-My dvd writer is not working.whenever i insert dvd/cd it ejects it without reading it.

Are you using a windows PC?

If so I ave some suggestions:

1. Go To Start Menu - Control Panel - System
click on the Hardware tab
select the DVD/CD-ROM drives
select the DVD drive in question
RIGHT click to get a menu click on Update Driver

2. If the DVD drive doesn't appear, you may need to reinstall in that case go to Add Hardware and install it.

I hope this helps.