Mainly bugfixing and and extra command `dvd+rw-mediainfo' that regretfully
only gives information when its really a DVD+/-R{W} disc ... this can be
used to get more information about the booktype used etc.
DVD+R/RW drives. It includes "growisofs" as a wrapper around mkisofs
for appending or modifying contents of existing media.
It is also able to write to some DVD- drives and media.
