- P2P network where people share music files of their own. Great way to find lossless music and a lot of relevant music.
Since Soulseek doesn't have strict rules regarding upconversion (lossy->lossless), many files may be of dubious quality. This can be verified through spectral analysis. A full guide for doing so along with the required software can be found here and here. In summary, you are looking for frequency cutoffs like the following:
The Mega Music Ripping Guide guide containing instructions on how to rip music from a variety of different popular sources.
Sharky's Music Google Docs is a massive document containing all sorts of tutorials and explanations for commonly-seen aspects of music ripping and uploading.