EDonkey2000

eDonkeyeDonkey2k
eDonkey2000 (nicknamed "ed2k") is a peer-to-peer file sharing application developed by US company MetaMachine (Jed McCaleb and Sam Yagan), using the Multisource File Transfer Protocol.wikipedia
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Peer-to-peer file sharing

P2Ppeer-to-peer filesharingpeer-to-peer
eDonkey2000 (nicknamed "ed2k") is a peer-to-peer file sharing application developed by US company MetaMachine (Jed McCaleb and Sam Yagan), using the Multisource File Transfer Protocol.
Napster and eDonkey2000, which both used a central server-based model, may be classified as the first generation of P2P systems.

Jed McCaleb

eDonkey2000 (nicknamed "ed2k") is a peer-to-peer file sharing application developed by US company MetaMachine (Jed McCaleb and Sam Yagan), using the Multisource File Transfer Protocol. eDonkey2000 was created by Jed McCaleb, cofounder of Stellar, and was first released on September 6, 2000.
McCaleb is also known for creating the bitcoin exchange Mt. Gox and the peer-to-peer eDonkey and Overnet networks as well as the eDonkey2000 application.

Ed2k URI scheme

ed2k linkeD2k linksed2k
To ease file searching, some websites list the checksums of sought-after files in the form of an ed2k link.
Many programs, such as eMule, MLDonkey and the original eDonkey2000 client by MetaMachine, which introduced the link type, as well as others using the eDonkey file sharing protocol, can be used to manage files stored in the filesharing network.

Overnet

Overnet network
This client supports both the eDonkey2000 network and the Overnet network.
Overnet was the creation of Jed McCaleb, the creator of eDonkey2000.

Napster

Napster LiveFleemsternappster.com
Compared to earlier P2P file-sharing program Napster, eDonkey2000 featured "swarming" downloads, meaning that clients could download different pieces of a single file from different peers, effectively utilizing the combined bandwidth of all of the peers instead of being limited to the bandwidth of a single peer.
However, some services, like LimeWire, Scour, Kazaa, Grokster, Madster, and eDonkey2000, were brought down or changed due to copyright issues.

EMule

eMule Xtreme Modaichemule source exchange
Nevertheless, the eDonkey Network is still available through other clients, such as eMule or aMule.
Started in May 2002 as an alternative to eDonkey2000, eMule now connects to both the eDonkey network and the Kad network.

EDonkey network

eDonkeyeD2keDonkey2000 network
This client supports both the eDonkey2000 network and the Overnet network. Nevertheless, the eDonkey Network is still available through other clients, such as eMule or aMule. Users on the eDonkey2000 network predominantly share large files of tens or hundreds of megabytes, such as CD images, videos, games, and software programs.
Most notably, eDonkey2000, the original client by MetaMachine, closed-source but freeware, and no longer maintained but very popular in its day; and eMule, a free program for Windows written in Visual C++ and licensed under the GNU GPL.

Comparison of eDonkey software

eD2k client
Comparison of eDonkey software

Sam Yagan

eDonkey2000 (nicknamed "ed2k") is a peer-to-peer file sharing application developed by US company MetaMachine (Jed McCaleb and Sam Yagan), using the Multisource File Transfer Protocol.

Cease and desist

cease-and-desistcease and desist ordercease and desist letter
On September 28, 2005, eDonkey was discontinued following a cease and desist letter from the RIAA. In September 2005, officials from the company MetaMachine received a cease and desist letter from the RIAA as a result of the June 2005 Supreme Court ruling MGM Studios v. Grokster that makers of software that facilitates copyright infringement are liable for that infringement.

Recording Industry Association of America

RIAAUSUnited States
On September 28, 2005, eDonkey was discontinued following a cease and desist letter from the RIAA. In September 2005, officials from the company MetaMachine received a cease and desist letter from the RIAA as a result of the June 2005 Supreme Court ruling MGM Studios v. Grokster that makers of software that facilitates copyright infringement are liable for that infringement.

Megabyte

MBmegabytesMbyte
Users on the eDonkey2000 network predominantly share large files of tens or hundreds of megabytes, such as CD images, videos, games, and software programs.

Checksum

checksumscheck sumcheck-sum
To ease file searching, some websites list the checksums of sought-after files in the form of an ed2k link.

Stellar (payment network)

StellarStellar LumenStellar Network
eDonkey2000 was created by Jed McCaleb, cofounder of Stellar, and was first released on September 6, 2000.

Microsoft Windows

WindowsPCWin
On September 16, 2000, client and server versions were available for Microsoft Windows and Linux.

Linux

GNU/LinuxLinLinux operating system
On September 16, 2000, client and server versions were available for Microsoft Windows and Linux.

Hash function

hashhashinghashes
A third improvement compared to Napster was the use of file hashes instead of simple filenames in search results.

Gnutella

gnutella-svcGnutella1GWCs
The two-level (client and server) peer-to-peer network architecture offered a balance between centralized systems like Napster, and decentralized systems like Gnutella.

BitTorrent

torrentBitTorrent protocoltorrents
Later 2nd-level P2P file sharing systems use a similar design to eDonkey2000 (downloading files in pieces by hash from multiple peers simultaneously) but innovate in the design of the server network, such as in the case of BitTorrent, which separates the file search feature ("torrent search") from the download peer locating feature ("torrent tracker").

Peer-to-peer

P2Ppeer to peerpeer-to-peer network
By effectively combining the range of the existing Overnet and eDonkey networks with the lightning-fast file distribution of the BitTorrent system, eDonkey2000 was following a growing trend amongst peer-to-peer programmes of integrating downloads from multiple networks.

Supreme Court of the United States

Supreme CourtUnited States Supreme CourtU.S. Supreme Court
In September 2005, officials from the company MetaMachine received a cease and desist letter from the RIAA as a result of the June 2005 Supreme Court ruling MGM Studios v. Grokster that makers of software that facilitates copyright infringement are liable for that infringement.

MGM Studios, Inc. v. Grokster, Ltd.

MGM v. GroksterGroksterMGM Studios v. Grokster
In September 2005, officials from the company MetaMachine received a cease and desist letter from the RIAA as a result of the June 2005 Supreme Court ruling MGM Studios v. Grokster that makers of software that facilitates copyright infringement are liable for that infringement.

Copyright infringement

piracysoftware piracypirated
In September 2005, officials from the company MetaMachine received a cease and desist letter from the RIAA as a result of the June 2005 Supreme Court ruling MGM Studios v. Grokster that makers of software that facilitates copyright infringement are liable for that infringement.

AMule

Nevertheless, the eDonkey Network is still available through other clients, such as eMule or aMule.