[luke@pc-luca Scaricati]$ sudo mount /dev/sr0 /mnt
mount: /mnt: wrong fs type, bad option, bad superblock on /dev/sr0, missing codepage or helper program, or other error.

[luke@pc-luca Scaricati]$ dvd+rw-mediainfo /dev/sr0
INQUIRY:                [HL-DT-ST][DVDRAM GUD0N    ][1.00]
GET [CURRENT] CONFIGURATION:
 Mounted Media:         1Bh, DVD+R
 Media ID:              CMC MAG/M01
 Current Write Speed:   8.0x1385=11080KB/s
 Write Speed #0:        8.0x1385=11080KB/s
 Write Speed #1:        4.0x1385=5540KB/s
 Speed Descriptor#0:    00/15871 R@8.0x1385=11080KB/s W@8.0x1385=11080KB/s
 Speed Descriptor#1:    00/15871 R@8.0x1385=11080KB/s W@4.0x1385=5540KB/s
READ DVD STRUCTURE[#0h]:
 Media Book Type:       00h, DVD-ROM book [revision 0]
 Legacy lead-out at:    2295104*2KB=4700372992
READ DISC INFORMATION:
 Disc status:           appendable
 Number of Sessions:    1
 State of Last Session: incomplete
 "Next" Track:          1
 Number of Tracks:      2
READ TRACK INFORMATION[#1]:
 Track State:           reserved
 Track Start Address:   0*2KB
 Next Writable Address: 0*2KB
 Free Blocks:           15872*2KB
 Track Size:            15872*2KB
READ TRACK INFORMATION[#2]:
 Track State:           invisible
 Track Start Address:   15888*2KB
 Next Writable Address: 103488*2KB
 Free Blocks:           2191616*2KB
 Track Size:            2279216*2KB
 ROM Compatibility LBA: 266240
READ CAPACITY:          0*2048=0