Welcome to the forums Julial. We will do our poor best to help.
We'll need a little bit of information from you though. If you will be so good as to download a free program, it will give us some info to help you. The program is Nero CD/DVD Speed and it is found here: http://www.cdspeed2000.com/
Install the program and tell us the name of the burner that shows up at the top of the window. I've circled the area it will be in the picture.
Now, put a disk in the drive and let it spin up. Then hit the Disc Info tab in Nero CD/DVD Speed. This will show us the Manufacturer Identification Code or mid code. Tell us what that is for these disks you have.