"one or more TDMA access indicators being located in a first TDMA being used first among the one or more TDMAs and indicating whether a corresponding TDMA is in use, the one or more TDMA access indicators including a copy of a temporary disc definition structure (TDDS) recorded first in the corresponding TDMA when the corresponding TDMA is in use, the TDDS including 00h at a position information fi" . . . .