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The Curious Bag
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<h4 class="dechead">On One Hand: Scart Cables Carry Analog Signals
Scart cables are designed to carry analog RGB or composite video signals. This interface was designed to work with VCRs and DVD players. Since RGB signals can be high definition, a scart cable can carry a high definition signal if the device that it is connected to can send an HD signal.
On the Other: HDMI is a Digital Signal
The HDMI specification was designed to be a fully digital data-transmission method that didn't use compression so viewers get the best picture possible. HDMI cables support standard and enhanced-definition video along with high-definition signals. It also supports advanced audio signals so you only need one cable.
Bottom Line
Because HDMI cables support the full range of video signals, a scart-to-HDMI cable will work. Because scart is an analog signal, it won't provide the picture quality of a fully digital signal. Using a conversion cable is a good way to extend the life of video components when you replace your television.
Source:
EPanorama.net: Scart Interfacing to Video Projectors
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