I too found my step video too fast and looked for a way to slow down the dvd player. Found this thread but the machines mentioned are too old to be any help.
However, I did find 2 Sony machines on Amazon that have several playback speeds, including 0.8x. This is the one I bought, a steal I thought for $44.
https://www.amazon.com/gp/product/B007F9XHAY/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1
However, I did find 2 Sony machines on Amazon that have several playback speeds, including 0.8x. This is the one I bought, a steal I thought for $44.
https://www.amazon.com/gp/product/B007F9XHAY/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1