C
HAPTER
IV
–
MPEG-4
&
D
VI
X
MPEG-4 is an ISO/IEC standard being developed by MPEG (Moving Picture Experts Group).
These standards made interactive video on CD-ROM and Digital Television possible. MPEG-4
will be the result of another international effort involving hundreds of researchers and
engineers from all over the world. MPEG-4 is to be released in November 1998 and will be an
international Standard in January 1999.
MPEG-4 is building on the proven succes of three fields: digital television, interactive
graphics applications (synthetic content) and Wold Wide Web. And it will provide the
standardized technological elements enabling the integration of the production, distribution
and content access paradigms of the three fields.
MPEG-4 is a graphics and video lossy compression algorithm standard. It is based on
MPEG-1 and MPEG-2 and Apple Quicktime technology. Wavelet based MPEG-4 files are
smaller than JPEG or Quicktime files, so they are designed to transmit video with text,
graphics and 2-d and 3-d animation layers. Wavelet technology can compress color images
at rates of 20:1 up to 300:1 and grayscale images at 2 to 50:1.
DviX is based on the MPEG-4 compression format. It is a new pay-per-view version of the
DVD movie-on-a-CD format. The discs are cheap to buy. DviX discs are encrypted and can
not be played in normal DVD players or in the DVD-ROM drives in newer computer.
Currently, the version of DviX have DviX 3.11, DviX 4.12 and DviX 5.05.
Support MP4 subtitle, including: English, simplified Chinese, complicated Chinese, Japanese,
Russian, West Europe and Middle Europe languages, but don’t support several subtitles at
the same time.
C
HAPTER
V
–
C
ARD
R
EADER AND
USB
Card reader support: MMC, SD, MS/MS pro, CF, SMC, Micro Driver.
USB support: USB2.0
Removing the DVD from the tray, then put Card or USB, the player will auto search the
directories saved MP#/JPEG/MPEG-4/MPEG files. After searching, it will auto go to the first
directory saved MP3.
Use the direction buttons to enter the Directory Region and highlight the desired directory,
then the first track under it starts playback. Also you can use the direction buttons to enter
the file region and select the file you want to play. The screen displays as the picture below:
File switch region :
Displays the file
type of the playing
and the switching.
The playing file is a
movie file
Current MP3/JPEG file
name. If a JPEG file
playing, the name should be
*.jpg
Current displaying
The playing file is a
JPEG picture
The playing file is a
music file
Notes: 1 – Udisk - When reading JPEG files, the display speed is slower, because the transmit rate of
system is lower.
:
t
f
- Don’t suppor USB hub, USB keyboard and USB mouse.
2 – Due to the limit o authority, DVD player can’t support Xd card
3 – Microdrive and CF card use the same slot, Microdrive’s consume is less than CF card.
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DC-715DX - User Manual– English V.2
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