[1] [CITE@en[The WebM Project : The WebM Project : Welcome to the WebM Project]]
([TIME[2010-05-20 04:53:45 +09:00]] 版)
<http://www.webmproject.org/>

[2] [CITE[IRC logs: freenode / #whatwg / 20110104]]
( ([TIME[2011-01-08 00:41:57 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20110104#l-955>

[3] [CITE[IRC logs: freenode / #whatwg / 20110112]]
( ([TIME[2011-01-19 00:18:13 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20110112>

[4] [CITE@en[Get WebM!]]
( ([TIME[2011-02-07 20:24:56 +09:00]] 版))
<http://webm.html5.org/>

[5] [CITE[The WHATWG Blog — webm.html5.org]]
( ([TIME[2011-02-08 22:50:29 +09:00]] 版))
<http://blog.whatwg.org/webm-html5-org>

[6] [CITE[IRC logs: freenode / #whatwg / 20110203]]
( ([TIME[2011-03-19 11:46:31 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20110203#l-505>

[7] [CITE@en[WebM Community Cross-License | WebM Community Cross-License Administration]]
( ([TIME[2011-04-30 12:34:57 +09:00]] 版))
<http://www.webm-ccl.org/>

[8] [CITE[The WebM Project | Welcome to the WebM Project]]
( ([TIME[2014-04-28 18:26:40 +09:00]] 版))
<http://www.webmproject.org/>

[9] [CITE[WebM for Internet Explorer]]
( ([TIME[2014-09-18 14:45:14 +09:00]] 版))
<https://tools.google.com/dlpage/webmmf/>

[10] [CITE[webm - an open web media project - Google Project Hosting]]
( ([TIME[2014-09-18 14:45:31 +09:00]] 版))
<https://code.google.com/p/webm/>

[11] [CITE@en-US[Can I use... Support tables for HTML5, CSS3, etc]]
( ([TIME[2014-07-20 16:48:55 +09:00]] 版))
<http://caniuse.com/#feat=webm>

[12] [CITE@en[WebM Stream Format]]
( ([TIME[2016-05-06 04:37:47 +09:00]]))
<https://www.w3.org/TR/2016/NOTE-eme-stream-webm-20160510/>

[13] [CITE@en["webm" Initialization Data Format]]
( ([TIME[2016-05-06 04:20:48 +09:00]]))
<https://www.w3.org/TR/2016/NOTE-eme-initdata-webm-20160510/>

[14] [CITE@en[testing/testdata - webm/libwebm - Git at Google]]
([TIME[2017-05-09 18:46:28 +09:00]])
<https://chromium.googlesource.com/webm/libwebm/+/master/testing/testdata/>

[15] [CITE@en[jscodec/jswebm: A javascript implementation of the Webm Demuxer (matroska)]]
([TIME[2018-03-28 00:17:44 +09:00]])
<https://github.com/jscodec/jswebm>