Tomislav Uzelac is the Croatia

Croatia

Croatia , officially the Republic of Croatia , is a unitary democratic parliamentary republic in Europe at the crossroads of the Mitteleuropa, the Balkans, and the Mediterranean. Its capital and largest city is Zagreb. The country is divided into 20 counties and the city of Zagreb. Croatia covers ...

n programmer who created AMP, considered the first successful MP3 player.

Uzelac studied at the University of Zagreb

University of Zagreb

The University of Zagreb is the biggest Croatian university and the oldest continuously operating university in the area covering Central Europe south of Vienna and all of Southeastern Europe...

's Faculty of Electrical Engineering and Computing

Faculty of Electrical Engineering and Computing

The Faculty of Electrical Engineering and Computing is one of the top faculties of University of Zagreb. The faculty is regarded as "the largest technical faculty and the leading educational as well as research-and-development institution in the fields of electrical engineering and computing in...

 (FER) under professor Mario Kovač

Mario Kovač (scientist)

Mario Kovač is a Croatian computer engineering professor and inventor. He is a professor at the Faculty of Electrical Engineering and Computing at the University of Zagreb who specialized in VLSI and was also involved in the creation of the early AMP MP3 player.Kovač graduated from the...

, working on MP3 software decoding. In 1997 he created AMP, and also graduated with an engineer's degree

Engineer's degree

An engineer's degree is an advanced academic degree in engineering that is conferred in Europe, some countries of Latin America, and a few institutions in the United States....

 from FER. Two students from the University of Utah

University of Utah

The University of Utah, also known as the U or the U of U, is a public, coeducational research university in Salt Lake City, Utah, United States. The university was established in 1850 as the University of Deseret by the General Assembly of the provisional State of Deseret, making it Utah's oldest...

, Justin Frankel

Justin Frankel

Justin Frankel is an American computer programmer best known for his work on the Winamp media player application and for inventing the gnutella peer-to-peer network...

 and Dmitry Boldyrev adapted it to work on Windows

Microsoft Windows

Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal...

 and called it WinAMP

Winamp

Winamp is a media player for Windows-based PCs and Android devices, written by Nullsoft, now a subsidiary of AOL. It is proprietary freeware/shareware, multi-format, extensible with plug-ins and skins, and is noted for its graphical sound visualization, playlist, and media library features.Winamp...

.

In order to manage AMP as a commercial product, Uzelac partnered with American media entrepreneur Brian Litman to form Advanced Multimedia Products "AMP". Advanced Multimedia Products was later merged into PlayMedia Systems - also co-founded by Uzelac. AMP was more widely marketed beginning in 1998 and facilitated world-wide MP3 popularization.