From
DRM Watch we find
The South Korean P2P file-sharing service Soribada revealed more details of its plans to convert to a paid service after losing a legal appeal against the Korean music industry last November. In an agreement with the Korea Music Producers' Association (KMPA), Soribada will charge users KRW 500 (US $0.51) for DRM-protected music tracks and KRW 700 ($0.72) for non-DRM-protected tracks. Soribada, one of several Korean P2P networks in discussions with KMPA, will use acoustic fingerprinting technology to control usage of some files on the network.
DRM Watch then reaches the conclusion that this means the seller expects a 40% piracy rate.
Ed Felten provides a clear explanation of why this conclusion is silly.