Do Any Dvd Plays Take Regular Batteries After Putting A DVD Into My Computer, It Won't Play.?

After putting a DVD into my computer, it won't play.? - do any dvd plays take regular batteries

This was not a recordable DVD. He was an original DVD in the box never been wrong. I tried to see on my computer, because our distance from the disc batteries (I know, I know).

He played, and play because even on regular DVD player. If I do on the screen says "No Disk".

My computer plays DVDs, but not store them. It is a Mac Mini if that helps.

My computer is simply magic to delete the entire movie? Is it possible to recover? Can someone explain what's going on?