This listing is for (1) one Brand New Factory Sealed PlayStation 1 CD-R71PS Development Blank Master CD Disk. 
The item has not been opened or used. There is no content on the disk and its a blank writable CD.

This is blank CD that developers used to create and burn their final copy of their games before sending it to the Sony factory to mass produce the game they were developing. 

Very rare collectible item for PlayStation collectors! Please see the pictures in the listing to see the condition of the item prior to purchasing it.

if you have any questions, let me know!