Backup(probléme message )

salut ,je fait mon backup a partir de mon originale avec xbox backup creator 2.4.
tChecking Stealth Compatibility
Video is valid*
PFI is present
DMI is present
SS is present
Stealth Check Passed!
Getting media info [E]
Media Type: Not Present
Getting media info [D]
Disk Book Type: DVD+R DL
Media Type: DVD+R DL (Blank, Manufactured by RICOHJPN)
Bytes Available: 7,96 GB (8 547 991 552 bytes)
Starting write process...
Mode Parameter = Xbox 360
Checking Stealth Compatibility
Video is valid*
PFI is present
DMI is present
SS is present
Stealth Check Passed!
Data Sizes:
Total: 7,05 GB (7 572 881 408 bytes)
Creating Buffer: 20,0 MB
Prefilling buffer
Buffer Filled: 100% 20,0 MB (20 971 520 bytes)
Using XBC to write image
Initializing Writer [D]
Opening for exclusive access [D]
Error opening for exclusive access [D]
Aborted opening for exclusive access [D]
Getting media info [D]
Media Type: Not Present
Write failed
mon iso est terminé mes quand je veus la graver,pas possible.