BookType setting is a "must" which all latest model burners released on the market today should be equipped with.

The drive by default is set to DVD-ROM for DVD+R DL, and this cannot be changed. For DVD+R and DVD+RW, the default setting remains the same as the disc's format, but this time it can be changed to DVD-ROM. With the help of some helpful utilities, you can change the booktype. Below you can see some screenshots from DVDInfoPro and Nero CD/DVD Speed. Both can be used to change the default booktype setting of the Sony DW-Q30A.