My HP Pavilion dv6105us Multimedia Drive Super Multi 8X DVD±R/RW with
Double Layer Support won't read a certain orignal Install CD.

It says that the Drive is empty.

I burnt a copy of the CD with another machine.

Now the Multimedia Drive Super Multi 8X DVD±R/RW with Double Layer
Support reads the copy and intalls the drivers for my scanner.

What is wrong with the HP Drive?

What do you suggest?