About The Avchd Format - Sony Handycam HDR-UX7 Operating Manual

Precautions and maintenance (Continued)
Care and storage of the discs
• Keep the disc clean, or the image quality
of the audio and video output may
deteriorate.
• Clean the disc with a soft cloth.
Wipe the disc from the center out. For
dirt, clean the disc with a soft cloth
slightly moistened in water, then remove
the moisture with a soft, dry cloth. Do not
use solvents such as benzine, cleaners
intended for vinyl LPs or antistatic spray,
as they may cause a malfunction to the
disc.
• Do not expose the disc to direct sunlight
or leave it in a humid place.
• When you carry or store the disc, put it in
its case.
• When you want to write letters or marks,
etc. on a single-sided disc, write only on
the printed side using an oil-based marker
with a felt-tip, and do not touch the ink
until it dries. Do not heat the disc or use a
sharp-pointed tool, such as ball point pen.
Do not dry the surface by heating. You
cannot write, or mark, on double-sided
discs.

About the AVCHD format

Your digital video camera recorder
incorporates both the AVCHD format and
the DVD format for the recording function.
What is the AVCHD format?
The AVCHD format is a high definition
digital video camera format used to record
an HD (high definition) signal of either the
1080i specification*
specification*
compression coding technology. The
MPEG-4 AVC/H.264 format is adopted to
106
or the 720p
1
, using efficient data
2
compress video data, and the Dolby Digital
or Linear PCM system is used to compress
audio data.
The MPEG-4 AVC/H.264 format is capable
of compressing images at higher efficiency
than that of the conventional image
compressing format. The MPEG-4 AVC/
H.264 format enables a high definition
(HD) video signal shot on a digital video
camera recorder to be recorded on 8 cm
DVD discs.
Recording and playback on your
camcorder
Based on the AVCHD format, your
camcorder records with the HD (high
definition) image quality mentioned below.
Video signal:
AVCHD format 1440 × 1080/60i
Audio signal:
Dolby Digital 5.1 ch
Recording media:
8 cm DVD-RW, DVD+RW, DVD-R,
DVD+R DL discs
• DVDs recorded in AVCHD format other than
the above mentioned cannot be played on your
camcorder. 8 cm DVD-RAM discs cannot be
recorded or played on your camcorder.
In addition to HD (high definition) image
quality, your camcorder is capable of
recording an SD (standard definition) signal
in the conventional DVD format.
*1: 1080i specification
A high definition specification which utilizes
1080 effective scanning lines and the interlace
system.
*2: 720p specification
A high definition specification which utilizes 720
effective scanning lines and the progressive
system.