Verbatim rewritable blank bluray discs (region Free) printable version. Verbatim's Hard Coatâ„¢ technology is similar to the surface coating technology used on touch panels and scratch-resistant eye glass lenses. MABL (Metal ABlative Layer) is Verbatim's patented recording layer technology developed specifically for Blu-ray media. MABL uses very stable inorganic metal nitrides rather than an organic dye. This results in a very stable disc that is ideal for long term storage or archival.