Here you can find several pieces by Nikola Ganchev in the pupular mp3 format, which you can play with a program such as Winamp.

Krivo Plovdivsko Horo
Size: 2 508 KB

Ovcharska Melodia
Size: 2 579 KB

Dobrudzhanski Rachenik
Size: 3 155 KB

Trakijski Chapraz
Size: 2 915 KB