A) Click on the Windows logo button, (Start), then click on Computer. (Windows Vista and Win7)
Right-click on the DVD drive. Left-click on Eject in the list.
B) Press the button on the optical drive's tray. See if you can ease the tray open. DON'T force it.
C) Taking the optical drive out so you can remove the cover, and retrieve your CD is the pits!
You have to partially disassemble the laptop from the top down, in order to access the mounting screws. Then you can slide the optical drive out of the side of the laptop, and remove it's cover.
Dell Support > Dell Studio 1745/1747 Notebook PC, (Part of the Studio 17 series of Notebook PC's), Service Manual,
http://support.dell.com/support/edocs/systems/studio1745/en/sm/index.htmClick on Optical Drive in the right column.
BEFORE you begin observe Anti-Static Precautions.
Click on Before You Begin in the left column.
For additional questions please post in a Comment.
Regards,
joecoolvette