Toshiba PORTEGE R700 - Manual (Page 101)

Writing with software other than TOSHIBA Disc Creator has not been
confirmed, therefore operation with other software applications cannot
be guaranteed.
Before writing or rewriting with the DVD Super Multi
drive Double Layer
Based on TOSHIBA's limited compatibility testing, we suggest the
following manufacturers of CD-R, CD-RW, DVD-R, DVD-R DL, DVD-
RW, DVD+R, DVD+R DL, DVD+RW or DVD-RAM media, however, it
must be noted that disc quality can affect write or rewrite success
rates. Please also be aware that in no event does TOSHIBA
guarantee the operation, quality or performance of any disc.
PORTÉGÉ R700 / Satellite R630
User's Manual 4-21