External burner stopped working

[crow-bar]

burnt a few movies .then it failed error reads as - invalid address for write .
then -failed to write sectors 768-799-l-ec uncorrectable error.
does anyone know what this means. it is playing movies and copeing them fine.just wont burn.

 

[RealBlackStuff]

Do you think we are all mind-readers?
Fill in your 'User Profile' (top left on any page) and tell us about Windows version, program(s) used, burner-details (make/model/how old etc.)
Anyway, you get my drift...