'dvd identifier' retrieves and
interprets the pre-recorded information that is present on dvd (dvd+r,
dvd+rw, dvd-r, dvd-rw, dvd-ram), hd dvd (hd dvd-r, hd dvd-rw, hd dvd-ram) and blu-ray (bd-r, bd-re). This information
contains a variety of parameters such as disc manufacturing information
and supported write speeds. Even though some of this information is usually
printed on the packaging, the brand name may differ from the actual
manufacturer or sometimes there might not even be any packaging
information at all.
To summarize : 'dvd identifier' offers a reliable method of
accurately identifying a disc's real manufacturer.