root@slack:asvos$ mount /dev/sr0 /mnt/dvd/
mount: block device /dev/sr0 is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/sr0,
       missing codepage or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

root@slack:asvos$ dmesg | tail
UDF-fs DEBUG super.c:770:udf_load_pvoldesc: volSetIdent[] = '09221257 UDF Volume Set'
UDF-fs DEBUG super.c:962:udf_load_logicalvol: Partition (0:8192) type 1 on volume 1
UDF-fs DEBUG super.c:962:udf_load_logicalvol: Partition (1:8192) type 2 on volume 1
UDF-fs DEBUG super.c:972:udf_load_logicalvol: FileSet found in LogicalVolDesc at block=0, partition=1
UDF-fs DEBUG super.c:800:udf_load_partdesc: Searching map: (8192 == 8192)
UDF-fs DEBUG super.c:882:udf_load_partdesc: Partition (8192:0 type 1511) starts at physical 272, block length 2297344
UDF-fs DEBUG super.c:1215:udf_load_partition: Using anchor in block 256
UDF-fs DEBUG super.c:1448:udf_read_super: Lastblock=0
UDF-fs DEBUG misc.c:305:udf_read_tagged: tag version 0x0000 != 0x0002 || 0x0003 block 0
UDF-fs: No fileset found
root@slack:asvos$ mount /dev/sr0 /mnt/dvd/ -t udf
mount: block device /dev/sr0 is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/sr0,
       missing codepage or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

root@slack:asvos$