Mime type for videos playing in mobile devices and web

<mime-mapping>

                <extension>mp4</extension>

                <mime-type>video/mp4</mime-type>

                </mime-mapping>

                <mime-mapping>

                <extension>ogg</extension>

                <mime-type>video/ogg</mime-type>

                </mime-mapping>

                <mime-mapping>

                <extension>webm</extension>

                <mime-type>video/webm</mime-type>

                </mime-mapping>

                <mime-mapping>

                <extension>3gp</extension>

                <mime-type>video/3gpp</mime-type>

                </mime-mapping>

                <mime-mapping>

                                <extension>ppt</extension>

                                <mime-type>application/x-ms-powerpoint</mime-type>

                </mime-mapping>

                <mime-mapping>

                                <extension>xml</extension>

                                <mime-type>text/xml</mime-type>

                </mime-mapping>

                <mime-mapping>

                                <extension>wmv</extension>

                                <mime-type>audio/x-ms-wmv</mime-type>

                </mime-mapping>