Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.
Sorry to hear you’re having trouble.
There are very few options for this, as this is an old model and this type of media isn't well supported any longer.All of the drives that would be compatible are long discontinued and difficult to find other than used, and they are also expensive.
Here is an example: http://www.ebay.com/itm/NEW-Pacific-Digital-X-TREME52-External-Hi-Speed-USB-2-0-CD-RW-52x24x52-U-30147-/330765777958
You'd be much better off though just copying the desired content off your current discs via a computer, putting them on a usb memory stick, and inserting that into the brother for file tranfer. The cost will be much lower as well as being more portable and easier to use.