How do I know if the Recovery Disk will work with my Toshiba computer?
Toshiba Restore Disks are classified by model/part number. This information is found on a sticker on the bottom of your laptop. Here is a link to a sample picture of a Toshiba sticker.
In this case, PSAA4E would be the number to search for to ensure you get the correct recovery disk. Also ensure that the Operating System listed matches what your laptop originally came with, by looking at the Certificate of Authenticity also located on the bottom of the laptop.