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Chapter 1 Overview 7
Chapter
1
Overview
Chapter1
Overview
Features
The HVR-M25U/M25N/M25E/M25P is a digital HD
videocassette recorder supporting HDV format and
DVCAM/DV format. The unit produces stable,
superior picture quality by digital processing and
separating image signals into color difference signals
and a luminance signal (component video). The unit
provides i.LINK (
HDV/DV) jack, HDMI OUT jack,
COMPONENT OUT jacks, S VIDEO IN/OUT jacks,
composite IN/OUT jacks, and AUDIO IN/OUT jacks.
These jacks allow you to connect other equipment like
non-linear editors. Additionally, it comes with a 2.7
(16:9)-type color LCD (liquid crystal display) monitor,
you can easily check your recorded images, menus,
and the audio level meters. The main features of the
unit are described below.
HDV format
The unit can perform HDV (High-Definition Digital
Video) recording and playback on a DVCAM format
video cassette or a DV format video cassette.
The compression system of HDV format is the
MPEG2 system adopted in the high-definition
broadcasting and the Blu-ray Disk System.
The unit adopts the 1080 scanning lines (interlace
(HDV 1080/60i and HDV 1080/50i)/1440 × 1080
pixels) format of the HDV specifications. The
recording bit rate is approximately 25 Mbps. The unit
is equipped with an i.LINK digital interface and can be
digitally connected with HDV-compatible televisions
or computers.
DVCAM/DV format
DVCAM is based on the consumer DV format, which
uses the 4:1:1 component digital format (60i) or the
4:2:0 format (50i), and provides a
1
/4-inch digital
recording format for professional use. The unit
provides both DVCAM format recording/playback and
DV format in SP mode recording/playback.
For details, see “Compatibility of HDV, DVCAM, and DV
Formats” on page 93.
Compatible with both 1080/60i (NTSC) and
1080/50i (PAL) systems
The unit is compatible with 60i and 50i systems. You
can switch these input signals using the menu setting
(page 79). This compatibility allows you to record
(download) or play back (upload) both 50i and 60i
signals with your VCR, computer, or other equipment.
However, the unit cannot convert the color system of
the signals.
The unit set in 60i system has a field frequency of
59.94 Hz.