Sony NEX-VG20 - Manual (Page 101)

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Maintenance and
precautions
About the AVCHD format
What is the AVCHD format?
The AVCHD format is a high definition
digital video camera format used to record
a high definition (HD) signal using efficient
data compression coding technology. The
MPEG-4 AVC/H.264 format is adopted to
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.
As the AVCHD format uses a
compression coding technology, the
picture may be disturbed in scenes
where picture, field angles or brightness,
etc. change drastically, but this is not a
malfunction.
Recording and playback on your
camcorder
Based on the AVCHD format, your
camcorder records with the high definition
image quality (HD).
In addition to high definition image
quality (HD), your camcorder is capable
of recording a standard definition (STD)
signal in the conventional MPEG-2 format.
Video signal * : MPEG-4 AVC/H.264 1920
 1080/60p, 1920  1080/60i, 1440 
1080/60i, 1920  1080/24p
Audio signal: Dolby Digital 2ch/5.1ch
Recording media: Memory card
* Data recorded in AVCHD format other than
the above mentioned cannot be played on your
camcorder.
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About the memory card
A memory card formatted by a computer
(Windows OS/Mac OS) does not have
guaranteed compatibility with your camcorder.
Data read/write speed may vary depending
on the combination of the memory card and
memory card compliant product you use.
Damaged or lost data may occur in the
following cases (the data will not be
compensated for):
If you eject the memory card, or turn off your
camcorder while your camcorder is reading
or writing image files on the memory card
(while the access lamp is lit or flashing)
If you use the memory card near magnets or
magnetic fields
It is recommended that you make a back-up of
important data on the hard disk of a computer.
Do not attach a label or the like on memory
card or memory card adaptor.
Do not touch, or allow metallic objects to come
into contact with the terminals.
Do not bend, drop or apply strong force to the
memory card.
Do not disassemble or modify the memory
card.
Do not let the memory card get wet.
Keep the memory card out of the reach of small
children. There is danger that a child might
swallow it.
Do not insert anything other than the compliant
size of memory card into the memory card slot.
Doing so may cause a malfunction.
Do not use or keep the memory card in the
following locations:
Places subject to extremely high temperature,
such as a car parked outside in the summer
Places under direct sunlight
Places with extremely high humidity or
subject to corrosive gases
On the memory card adaptor
When using memory card with memory card
compliant device inserting memory card
into memory card adaptor, make sure the
memory card is inserted facing in the correct
direction. Note that improper use may cause a
malfunction.
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