Have you seen this on a Pismo, what does it mean, and, what can I do about it please? I went to play a DVD having booted from OS 9.2.2 and got this -

"Apple DVD Player cannot open because the required hardware was not found
If you have another application open that uses sound or video, quit that application and open Apple DVD Player again. If you are using a Powerbook that requires a DVD-Video PC Card, make sure the PC card is properly installed in the appropriate slot. (21)

Quit"

I've changed drives without success.

Best wishes,

James