Erasing Dual layer DVD-RW - Getting write protected error

[syedrehankn]

I have a dual layer DVD which says "RW" on it so obviously I guess it's erasable? BUt everytime I try to erase it, I get an error saying "the drive is write protected" . It has HP restore image on it. ANy idea how to get around this issue? Thanks in advance

[wonkanoby]

if it was finalised when burnt then thats it

[Evileagle]

Lots of discs say 'RW' on them, but it's not rewritable unless it explicitly says DVD+RW or DVD-RW.