The GameStats review have more reasonable benchmark done in several games. Lampy's MP3 and Music has posted a Portable MP3 player guide where they describe the most common features and take a closer look at 16 different MP3 players. Here's a few snips from the press release that should give you an idea what this program do. The free software system targets artists and labels who want to sell MP3 files in a secure manner. An ordinary music CD contains audio, cover art, liner notes, track list and lyrics.
Users can preview individual tracks and purchase the virtual CD from within their player.
A Music Exchange preview CD might contain up to 10 virtual CD's, and deliver them as part of a promotion. When a user plays preview tracks, they are also given the option to purchase the Virtual CD by using a simple, secure, on-line mechanism. When they do so, a digital certificate unlocks the album. To provide maximum choice in players, J. River designed the Music Exchange consumer component as a plug-in that is quickly being adopted by popular players. Music Exchange was introduced in May of 1999 at the RealNetworks Conference in San Francisco and shown at the MP3 Summit in June.