maxell M-VDRS250G.A 250GB Used for recording by inserting it into a Hitachi Wooo TV. I'm not sure of the details, so please check the model number in the photos to confirm. I have confirmed its operation by playing back recordings on the TV. I plan to erase the recorded content before shipping. I will try to search for information on initial formatting, but I may not be able to do it because I don't know how. The TV I am using is a Hitachi Wooo L42-XV02. Please comment if you have any questions. HITACHI iVDRS