It is encrypted with AACS by the "Copy Once" system though the digital broadcasting of Japan is recorded in BD by the BDAV format. It was possible to back up by BackupBDAV so far. The recorder shipped recently comes to be encrypted with AACS V4 and it is not possible to back up with BackupBDAV. The reason for BackupBDAV is that AACS V4 is not supported. When BDMV of AACS V4 is played, BDAV made since it plays comes to be encrypted with AACS V4. We want to cancel cannot the free backup of digital broadcasting. We sincerely wish AnyDVD HD to support BDAV. Thank you.