Nec 4550A booktype

The 4550A can change the booktype to DVD-ROM for DVD+R, DVD+RW and DVD+R DL formats with the original firmware???. :bow:

Original firmware only support bitsetting for dvd+r dl.

You have to use modded firmware for bitsetting dvd+r/rw. http://liggydee.cdfreaks.com/page/4550/