You can Buy them from Toshiba,Nothing to do with in or out of warranty.
Get Recovery Media
P.S. From Our forum Rules
No subject matter will be allowed whose purpose is to defeat existing copyright or security measures. If a user persists and/or the activity is obviously illegal the staff reserves the right to remove such content and/or ban the user. This would also mean encouraging the use or continued use of pirated software is not permitted, and subject to the same consequences.
Since Toshiba Sells The restore disks Please do not ask for them.