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90 HP MediaSmart HDTV User Guide
■ Dolby Digital. Also known as AC3, Dolby
Digital forms the basis of multichannel audio
coding in HDTV and DVD movies.
■ Divx, Xvid. Popular video codecs based on the
MPEG-4, part 2 video standard. Divx includes
video codecs rev. 3, 4, 5, and 6.
Popular file containers
■ AVI is a popular Audio/Video file format in PC
systems. It supports multiple audio and video
codecs, including DV, Divx, and MPEG-1/2/4.
■ MP4 file format is based on the Apple Quick
Time file format, but is part of the MPEG-4
standard (MPEG-4, part 14). MP4 files use the
.mp4 extension and support a variety of codecs,
including the audio AAC codec and MPEG-4 (part
2 or part 10) codecs.
■ WMV (Windows Media Video) or ASF
(Advanced Streaming Format) are also popular
Microsoft media file containers. They support
mostly Microsoft-based codecs, such as
WMV7/8/9, Windows Media audio (WMA),
and VC-1.
■ DVR-MS is a Microsoft file container for storing
broadcast TV programming that is recorded by
Media Center PCs.
■ Divx is a file container developed by the DivX
Corporation. It supports the Divx video codecs
(versions 3.0 to 6) that are based on the MPEG-4,
part 2 video codec, and a variety of audio
codecs, including MP2, MP3, Dolby Digital, and
raw LPCM data. The divx file format can also
support metadata, subtitle tracks, and DRM.
■ Quick Time (.mov or .qt) is a file container
developed by Apple. It provided the basis for the
MP4 file format that is currently used by iTunes
and other media service providers.
■ MPG (.mpg) is the simplest possible file container
for an MPEG video with associated audio. It
usually supports MPEG-2 video (MP@ML or
MP@HL) and MPEG-2, Layer II or Dolby Digital
audio.
■ Video Object files, VOB (.vob), are used in DVDs.
They include audio, video, menu, and subtitle
information. In most cases, renaming a .vob file to
an .mpg file is all that is needed to play the file by
an MPEG-compliant decoder (without the menu or
subtitle information, however).
Supported media
Your MediaSmart TV does not support all possible
codecs. The Table of Supported Media that follows
provides details on the codecs and file containers that
the MediaSmart TV supports.
The UPnP-compliant program you use to stream media
to your TV can limit the files that you can stream.
Windows Media Player 11 does not show media files
that it does not support or that it does not recognize,
such as iTunes audio files in MP4 (AAC) format, photos
in Bitmap format (.bmp) or Graphics Interchange
Format (.gif), or Media Center recorded TV programs
in Microsoft Video Recording format (.dvr-ms).
For example, your MediaSmart TV supports the
playback of dvr-ms files, but Windows Media
Player 11 may not. If you do not see your dvr-ms files
in the Windows Media Player Library, you may need
to install the MediaSmart software from the Installation
CD; see “Setting up a wired or wireless connection” on
page 25.