The BookType setting feature is a "must", which all the latest model drives released on the market should be equipped with. The SHW-16H5S is set by default to DVD+R and DVD+RW booktypes for the DVD+R and DVD+RW formats respectively, while for DVD+R9 it is set to DVD-ROM. You can change the booktype for the DVD+R and DVD+RW formats but not for the DVD+R9.

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