Different audio and video formats used in html5

Format File Description
Flash .swf
.flv Flash was developed by Macromedia. Flash requires an extra component to play in a browser.
Ogg .ogg Theora Ogg was developed by the Xiph.Org Foundation.
WebM .webm WebM is a project by the web giants, Mozilla, Opera, Adobe, and Google.
MPEG .mpg
.mpeg MPEG, developed by the Moving Pictures Expert Group, used to be the most popular video format on the Internet. It used to be supported by all major browsers, but it is not supported by HTML5.
MPEG-4
or MP4 .mp4 MP4 is the upcoming format on the internet. It is supported by all major browsers in HTML5. YouTube recommends using MP4, and it is commonly used in newer video cameras and TV hardware.

Note Only MP4, WebM, and Ogg video is supported by the newest HTML5 standard.
AVI .avi AVI (Audio Video Interleave) was developed by Microsoft, and is therefore playable on all Windows computers. It is commonly used in video cameras and TV hardware, but is difficult to play on non-Windows computers.
WMV .wmv WMV (Windows Media Video) was developed by Microsoft, and is therefore playable on all Windows computers. It is commonly used in video cameras and by TV hardware, but is difficult to play on non-Windows computers.
QuickTime .mov QuickTime was developed by Apple, and
is therefore playable on all Apple computers.
It is commonly used in video cameras and by TV hardware, but is difficult to play on non-Apple computers.
RealVideo .rm
.ram RealVideo was developed by Real Media to allow video streaming with low bandwidths. It is still used for online video and Internet TV, but because of the low bandwidth priority, the quality is also low.

 
Sound Formats

MP3 is the newest format for compressed recorded music.

If your website is about recorded music, MP3 is the choice.
Format File Description
MIDI .mid
When we sould use midi file it is used for minimum play duration like 4 or 5 minutes.
.midi MIDI (Musical Instrument Digital Interface) is a format for electronic music devices like synthesizers and PC sound cards. MIDI files do not contain sound, but digital musical instructions (notes) that can be played by electronics (like your PC’s sound card).
Because it is the main format for binary music, it is supported by most software, including Internet browsers.
RealAudio .rm
WAV .wav WAVE (more known as WAV) was developed by IBM and Microsoft. WAV is compatible with Windows, Macintosh, and Linux operating systems, but is not supported by Internet Explorer in HTML5.
Ogg .ogg Ogg was developed by the Xiph.Org Foundation. Ogg is designed to provide for efficient streaming and manipulation of high quality digital multimedia.
MP3 .mp3 MP3 files are actually the sound part of MPEG files. MP3 is the most popular format for music players. The encoding system combines good compression (small files) with high quality. It is supported by all major browsers.
MP4 .mp4 MP4 is a video format, but it can also be used with audio only. MP4 video is the upcoming video format on the internet. This can lead to an automatic support for MP4 audio by all major browsers.
ram RealAudio was developed Real Media to allow streaming of audio (online music, Internet radio) with low bandwidths.
WMA .wma WMA (Windows Media Audio), compares in quality to MP3, and is compatible with most music players, except the iPod. WMA files can be delivered as a continuous flow of data, which makes it practical for use in Internet radio or on-line music.
AAC .aac AAC (Advanced Audio Coding) was developed by Apple as the default format for iTunes.

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HTML5 TUTORIAL