Fix #502703 – Data Integrity Check Always Fails AND Burning Speed Slow (except dvd which ignored setting). since there is no way to detect runouts added by DAO read the volume size to determine size of the first track for a multisession CD * src/burn-medium.c: (brasero_medium_track_get_info), (brasero_medium_get_CD_sessions_info), (brasero_medium_get_sessions_info), (brasero_medium_get_contents): * src/scsi/scsi-q-subchannel.h: svn path=/branches/brasero_0_7/; revision=623