[1] [CITE[Re: Video : Slow motion, fast forward effects]] ([[Ian Hickson <ian@...>]] 著, [TIME[2008-10-13 22:41:19 +09:00]] 版) <http://permalink.gmane.org/gmane.org.w3c.whatwg.discuss/15893>

[2] [CITE[Re: Video : Slow motion, fast forward effects]] ([[Ian Hickson <ian@...>]] 著, [TIME[2008-10-15 09:08:21 +09:00]] 版) <http://permalink.gmane.org/gmane.org.w3c.whatwg.discuss/15935>

[3] [CITE@en-us[Firefox 3.1 for developers - MDC]] ([TIME[2009-02-08 18:25:06 +09:00]] 版) <https://developer.mozilla.org/ja/Firefox_3.1_for_developers#HTML_.e3.81.ae.e5.a4.89.e6.9b.b4.e7.82.b9>

>video と audio 要素。