English
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R
ecording
Unrecordable pictures
Video with copy protection cannot be recorded on this HDD &
DVD RECORDER.
When the HDD & DVD RECORDER receives a copy- guard signal
while recording, recording stops and the following message
appears on the screen.
Concerning Copy Control Signals
TV broadcasts that contain copy control signals may have one of the
following three signal types, Copy-Free, Copy-Once and Copy-Never.
If you want to record a copy-once type programme, use DVD-RW with
CPRM in VR Mode and DVD-RAM.
Signal type
Media
Copy-Free
Copy-Once
Copy-Never
DVD-RW(Ver.1.1)
O
–
–
DVD-RW(Ver.1.1)
with CPRM
VR mode
V mode
O
O
O*
–
–
DVD-R
O
–
DVD-RAM(Ver. 2.0)
O
O*
–
Once “Copy Once” has been recorded, recording cannot be done
anymore.
Content Protection for Recordable Media (CPRM)
CPRM is a mechanism that ties a recording to the media on which it is
recorded. It is supported by some HDD & DVD RECORDERs, but not
by many DVD players. Each blank recordable DVD has a unique 64-bit
media ID etched in the BCA. When protected content is recorded onto
the disc, it can be encrypted with a 56-bit C2 (Cryptomeria) cipher
derived from the media ID.
During playback, the ID is read from the BCA and used to generate a
key to decrypt the contents of the disc. If the contents of the disc are
copied to other media, the ID will be absent or wrong and the data will
not be decryptable.
◆
You cannot record copy protected movie.
01392A_HR750_XEU-ENG-0423.indd 59
01392A_HR750_XEU-ENG-0423.indd 59
2007-04-24 9:32:55
2007-04-24 9:32:55
