External DVD Player

Hello,
Has anyone tried connecting an external USB DVD player on an Apple TV using ATVflash.
I have tried reading a rental DVD, but with no success. When I go to Nito TV and look at drives, I see nothing.
I did run the Smart Installer.

My DVD unit is a simple Lg unit that works fine on a regular Mac. I really want to use this as a replacement to my living room DVD player (non Blue Ray).

Thanks

JF