Science & Engineering Research Support soCiety (SERSC)
BitTorrent is an issue for copyright protection and infringements should be punished based on evidence of invasion of the rights of others. In the BitTorrent system, seeders possess the complete content and leechers have partial content, and the content is shared among peers. Copyrighted content is easily distinguished with complete content but it might not be obvious with partial content. Thus, the authors propose an original content recovery technology based on pulse code modulation pieces obtained from the CD ripping of music held by leechers.