Sony RDR-HX900 Operating Instructions Manual page 73

Note that speeds shown in the table are an
approximate of the maximum dubbing speed.
*1
Speed x2.4-speed x2-speed
High-
Rec
speed
mode
DVD+RW
HQ x2.4
HSP x3.6
SP x4.8
LP x7.2
EP x9.6
SLP x1
*1
Maximum recording speed of this recorder.
*2
When dubbing to DVD+Rs, the dubbing speed is
x1-speed.
Notes
• High-speed Dubbing is not available for the following
titles:
– Titles recorded in HQ+.
– Titles that contain both main and sub sounds (except
DVD-RWs (VR mode)).
– Titles recorded in mixed picture size (4:3 and 16:9
etc.), (except DVD-RWs (VR mode)).
– Titles recorded in SLP (DVD+RW/DVD+R only).
• When dubbed to a DVD-RW (Video mode)/
DVD+RW/DVD+R/DVD-R, erased pictures may
remain on the disc.
Rec Mode Conversion Dubbing
n /
+ - RW
HDD RW
-
R
Allows you to dub from the HDD to a DVD or vice
versa, in a dubbing mode that differs from the
original recordings. For example, when you dub
an HQ title (data size is large) in SP mode, you can
reduce the data size, saving more titles using less
space.
Select a mode different from the original recording
in "Dub Mode" in the steps of "Dubbing a Single
Title (Title Dub)" (page 74) or "Dubbing Multiple
Titles (Dub Selected Titles)" (page 75).
When an HQ or HQ+ title is converted to another
mode, the recorder automatically assigns an
appropriate bit rate, thus retaining the original
picture quality as much as possible ("Dynamic
VBR Dubbing").
x4-speed
High-
High-
speed
speed
DVD+R/
DVD-RW
DVD-R
x2 x4
x3 x6
x4 x8
x6 x12
x8 x16
*2
x12 x24
/ / /
+
- RW R
VR
Video
About "VBR"
VBR (Variable Bit Rate) is an effective method of
allocating a suitable bit amount per second. Fine
detail pictures or dynamically moving pictures are
assigned a larger amount, while static pictures are
assigned less, for optimum picture quality.
• Variable bit rate (adopted
for this recorder)
Average distribution rate
z Hint
When you dub an edited title using the Rec Mode
Conversion Dubbing method, pauses between scenes are
smoothed out.
Note
The picture quality will not improve even if a title is
converted to a recording mode of better picture quality.
Dubbing restriction
Some DVD VIDEOs or TV programmes contain
copy protection signals such as "Copy-Never" or
"Copy-Once." You cannot record such contents on
this recorder (only a grey, blank screen will be
recorded). Be especially careful when dubbing on
a non-rewritable DVD such as a DVD-R.
Copy Original
protection recording
signals
Copy-Free
HDD
+ RW
- RW
Video
-
R
Copy-Once
HDD
- RW
Copy-Never
* Version 1.1 CPRM-compatible DVD-RW (VR mode)
only (page 8).
• Fixed bit rate
Average distribution rate
More bits
Wasted bits
are required
Dubbing
,
+ - RW
RW
VR
- RW +
R
Video
- R
- RW HDD
VR
+ R
recorded in grey.
*
VR
recorded in grey.
73