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10
Features
Chapter 1 Overview
Features of the Optical Disc Drive
(VDR)
Support for HD/SD recording and playback
formats
For HD video recording format, MPEG-2 MP@HL
compression is used, and the image quality (bit rate) and
recording time
1)
can be selected according to the shooting
application. Recording in the DVCAM format is also
supported. The audio is recorded as four channels or two
channels
2)
, uncompressed.
1) The recording mode can be selected from the three modes: HQ (High
Quality), SP (Standard Play) and LP (Long Play).
2) DVCAM recording is available for four channels only.
Proxy AV data recording
Proxy AV data is low resolution data using MPEG-4
(video 1.5 Mbps, audio 64 kbps per channel). With this
unit, when recording HD or SD high resolution data, low
resolution Proxy AV data is automatically generated at the
same time, and recorded.
Since Proxy AV data is compact, it can be transferred to a
computer or network at high speed, enormously reducing
the storage capacity required for recording. Exploiting this
allows a laptop computer to be used for editing
1)
, allows
content management on an inexpensive and compact
server, and makes many other applications easy to
implement.
1) Using the supplied PDZ-1 Proxy Browsing Software, a simple EDL (edit
decision list) can be created.
Saving general-purpose files
The Professional Disc has an area of approximately 500
MB provided for storing general-purpose computer files.
Long recording times
When dual-layer Professional Discs are used, this unit can
record about 190 minutes in SP mode and about 185
minutes in DVCAM mode.
Recording and playback in clip units
A clip is created each time recording is started and
stopped.
• Recording always writes to an empty area of the disc.
Therefore, even if playback is carried out between
shooting sessions, there is no danger of the next shot
inadvertently overwriting previous material. During
playback, the next recorded can always be started
immediately.
• Since unwanted clips can be deleted on this unit
immediately after they are recorded, the disc capacity
can be used effectively.
It is also possible to keep recording to the same clip even
when recording stops and starts again. (In this manual, this
feature is called the “Clip Continuous Rec” function.)
The Clip Continuous Rec function can be turned on and off
from the menu system.
For details, see “Recording with the Clip Continuous Rec
Function” (page 75).
Convenient playback and search functions
exploiting the disc characteristics
Thumbnail search
Pressing the THUMBNAIL button on this unit displays a
representative image for each clip as a thumbnail on the
LCD (liquid crystal display) monitor, in the viewfinder,
and on the external video monitor.
Selecting a thumbnail with the cursor and pressing the
PLAY/PAUSE button allows any clip to be checked
easily.
Essence mark search
During or after movie recording, an essence mark can be
recorded on any scene. A list of frames with an essence
mark recorded can be displayed on the LCD monitor, in
the viewfinder, and on the external video monitor. Essence
marks can also be added after recording using the supplied
PDZ-1 Proxy Browsing Software.
Expand function
The expand function allows you to divide a selected clip
into 12 blocks, and to display thumbnails of the first frame
in each block in the thumbnail list. You can also divide the
segment between a selected essence mark and the next
essence mark in the same way. The expansion can be
repeated up to three times to display a total of 1728
thumbnails. This function allows you to quickly review the
selected clip or segment and to search efficiently for a
target scene.
Scene selection
You can select clips on the disc to create a clip list. The
clips in this list can be played back in any order. A single
disc can hold up to 99 clip lists.
Audio recording functions
Audio is recorded as uncompressed data with 16-bit
quantization, and a sampling frequency of 48 kHz.
Depending on shooting requirements and recording time,
either two or four audio channels can be selected. (Only
four channels for DVCAM recording.)
• The unit is equipped with a stereo front microphone.
• There are two AUDIO IN connectors (XLR, 3-pin) on
the rear of the unit, which can be used for line and
microphone input.
• The CA-WR855 Camera Adaptor (supplied separately)
can be used to install the WRR-855 series slot-in type