Defines the erase method. Two options are available:
The Quick-erase rewritable disc method does not physically
erase all data from the disc, but only the references to the
contents. The disc will appear to be empty even though the data
is still physically available. Erasing a disc using this method
takes between one and two minutes.
The Full-erase rewritable disc method physically erases all
data from the disc. The contents cannot be restored with
conventional methods. Repeated full erasing increases the
probability that third parties will not be able to reconstruct the
contents. Erasing the disc using this method takes longer than
the other method, depending on the type of disc involved.