Walkman ended in 2010.

1978

The format of the Walkman is wmv.The walkman comes with a handy content transferer,also a video converter,in the folders of the walkman when you plug it in the computer

The Walkman's popularity ranged between 1987 and 1997. During this time 200 million Walkman units wear sold. The Walkman changed how people experience music. The Walkman was first introduced to the U.S. as the "Sound-About".

No, I think this is not necessary to use screensaver on walkman.