Hi,

I realize this may be out of the scope of wget, so I hope I don't offend
anyone.

I wanted to request support for .metalink files. Metalink is a way to store
ftp/http mirror info along with p2p & checksums. (p2p info is dropped if the
client doesn't support it). It's a relatively simple XML file for storing
info for segmented/multi-threaded downloads for download managers. Right
now, GetRight (Windows) and FlashGot (Firefox extension) support it.

I think its especially nice for large ISOs. A download manager will get a
chunk or segment from multiple servers, which makes things pretty fast if
you have a good connection.

.metalink files look like this one for Fedora Core 5:

<metalink version="3.0" xmlns="http://www.metalinker.org/";>
<files>
  <file name="FC-5-i386-DVD.iso">
    <size>4370640896</size>
    <verification>
      <hash type="md5">ed9a852cf77250c3ae111c621d350af5c0b0a29b</hash>
    </verification>
    <license>
        <name>GPL</name>
        <summary>Short explanation of license</summary>
        <url>http://www.gnu.org/copyleft/gpl.html</url>
    </license>   
    <resources>
        <url type="bittorrent" preference="100">
        http://torrent.fedoraproject.org/torrents/bordeaux-DVD-i386.torrent
        <url type="ftp" location="us" preference="90">
 
ftp://ftp.ndlug.nd.edu/pub/fedora/linux/core/5/i386/iso/FC-5-i386-DVD.iso
        </url>
        <url type="http" location="us" preference="80">
 
http://mirror.linux.duke.edu/pub/fedora/linux/core/5/i386/iso/FC-5-i386-DVD.
iso
        </url>
        <url type="ftp" location="us" preference="80">
        ftp://limestone.uoregon.edu/fedora/5/i386/iso/FC-5-i386-DVD.iso
        </url>
        <url type="ftp" location="ca" preference="80">
 
ftp://ftp.telus.net/pub/fedora/linux/core/5/i386/iso/FC-5-i386-DVD.iso
        </url>
        <url type="http" location="ca" preference="90">
 
http://less.cogeco.net/pub/fedora/linux/core/5/i386/iso/FC-5-i386-DVD.iso
        </url>
        <url type="ftp" location="ca" preference="80">
 
ftp://mirror.arcticnetwork.ca/pub/fedora/linux/core/5/i386/iso/FC-5-i386-DVD
.iso
        </url>
    </resources>
  </file>
</files>
</metalink>


There's more info & a demo of it in action at http://www.metalinker.org/

Anthony Bryan

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