Online Streaming Formats
Here is a guide to the main CODECS used.MPEG-1: Seen sometimes for Internet downloads but is more commonly used for the Video CD standard. It offers roughly the same or better video quality than VHS but not as good as DVD or SVCD.
MPEG-2: Used on DVD and in another form for SVCD. When used on a standard DVD, it offers great picture quality and supports widescreen. When used on SVCD, it is not as good but is certainly better than VCD. Unfortunetly, SVCD will only fit around 40 minutes of video on a CD, VCD will fit an hour.
WMV (Windows Media Video): Microsoft's proprietary format. It can do anything from low resolution video for dial up internet users to High Definition video to view on an HD TV. files can be burnt to CD and DVD or output to any number of devices. It is also useful for Media Centre PCs.
Real Video: Developed by Real Networks. A popular codec in the earlier days of internet when bandwidth was scarce. Now less popular because the required player adds all kinds of unnecessary extras, and monitors usage behavior.
QuickTime: Strickly speaking QuickTime is not a codec, but a file format, API set, and media player developed by Apple. It supports many popular codecs. Some of the more popular include Cinepack, Sorenson 3, and MPEG-4 Video. QuickTime also supports a plug-in architecture that allows other popular codecs such as MPEG 2 and DivX to be added by the user.
Sorenson 3: A popular codec used by Apple's QuickTime. Many of the Movie trailers found on the web use this codec.
Cinepack: A very early codec used by Apple's QuickTime.
MPEG4: The latest MPEG codec can be used for internet and on disc like WMV.
DivX & Xvid: Types of MPEG 4
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posted by Azure Production @ 3:30 PM
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