How am I able to watch the DVD when Superdrive gets disconnected?

[brinkeguthrie]

Watching a movie on DVD- Superdrive connected to MBA. Player got disconnected while I was watching the movie---yet it was still playing on my screen.

How is this even possible? Some type of cached file on MBA?

 

[Heinzja]

Yes - cached the part of the film...

 

[hg.wells]

It behaves just like skip protection on a Walkman.