My dell studio 1555 is not reading cd's except it makes a weird noise and the cd becomes lodged in the drive . after some prying its possible to pull it out

Hello,
First off, you might need your windows operating system disc. 1. Turn on your laptop 2. Start tapping on F2 once you see the Dell Logo 3. Once your inside BIOS go to Boot options or Boot menu 4. Change the boot priority, make the CD the top priority. 5. Once you're done with step 5, insert the operating system disc into your CD/DVD drive 6. Press F10 (Save and Exit). The laptop will then restart. 7. Check if it will boot from the OS disc, if it does, then there's no problem with your optical drive. If it did not boot from the operating system disc, then there's a big chance that your CD/DVD drive is already broken.
Note : if you're not satisfied with the steps above, you might want to try 2 operating system discs. You don't have to install them on the laptop, we just need to use it to verify if the CD/DVD drive is already broken and needs to be replaced.
With my experience as a technical support, usually this kinds of symptoms(the things that you mentioned) says that the DVD drive is already broken or defective.
Hope this helps!