Unrecordable Pictures - Samsung DVD-SH873M User Manual

recording

M
Recording time may vary according to specifi c conditions.

1GB = 1,000,000,000 bytes; actual formatted capacity may be less as the internal fi rmware uses a portion of the
memory.

The dual layer DVD±Rs have approximately double the capacity of single layer DVD±Rs. (See pages 52~53)

DVB-T recording is possible only on FR mode.

On DVB-T recording, recording mode will be automatically determined depending on the quality of the video (or
audio).

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, DVD-RAM and HDD.
Media
DVD-RW (Ver.1.1)
DVD-RW(Ver.1.1)
with CPRM
VR mode
V mode
DVD-R
DVD-RAM (Ver.2.0)
DVD+RW
DVD+R
HDD
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.
72_ recording
Signal type
Copy-Free
O
O
O
O
O
O
O
O
Copy-Once
-
O*
O*
-
-
O*
Copy-Never
-
-
-
-
-
-
-
-