$ curl -I http://libre-ouvert.toile-libre.org/data/documents/retour_vers_le_futur_2_ohlala.weba
HTTP/1.1 200 OK
Connection: close
Content-Type: audio/webm
Accept-Ranges: bytes
ETag: "1567424431"
Last-Modified: Mon, 07 Jun 2010 23:17:51 GMT
Content-Length: 86306
Date: Mon, 07 Jun 2010 22:50:29 GMT
Server: Lighttpd
Set-Cookie: SERVERID=turlute; path=/
Cache-control: private

$ curl -I http://libre-ouvert.toile-libre.org/data/documents/retour_vers_le_futur_2_ohlala.webm
HTTP/1.1 200 OK
Connection: close
Content-Type: video/webm
Accept-Ranges: bytes
ETag: "1775140618"
Last-Modified: Sat, 29 May 2010 18:39:34 GMT
Content-Length: 86306
Date: Mon, 07 Jun 2010 21:41:45 GMT
Server: Lighttpd
Set-Cookie: SERVERID=turlute; path=/
Cache-control: private