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Imagine situation when I don't have any video codecs and flash installed on my PC. I've downloaded and installed flash player from here. Can I start watching video in the web, or additional codecs (for mp4 and flv) required to do this?

Thanks in advance.

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Yes you can watch videos from most sites with Flash. No other codecs are need on most sites. A few sites might tell you you need to download additional codecs to view the video, but those are usually fake sites that will install malware.

Also if you install a video player like VLC, it will add some codecs for various sites that don't rely on Flash.

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Could you please provide a proof link? Customers wanted to know that no additional codecs required and I have to proof this fact. – Kai Oct 25 '13 at 6:42
Here is a short tutorial on codecs. It shows that most sites use the standard H.264 and MP3, so they can be encoded with Flash.… But if any of your customers plan to use Netflix, they will need to install Silverlight as well. Only a handful of sites will require specific applications. – Cafe Colado Oct 25 '13 at 7:05
This isn't entirely true. It depends on what the FLV contains. The Flash player can't decode H.264 without additional codecs AFAIK. Only native Flash video is supported. – slhck Oct 25 '13 at 7:27

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