They don't make demos like they used to because, well, they don't make demos anymore period. Blame the Interwebz for saturating cyberspace with more rap "projects" than New York City public housing. Yet as the Web taketh away so doth it giveth, regularly gifting us beaucoup vintage demos and lost OG versions of tracks from the classic hip-hop era like every day is rap nerd Xmas (or at least Kwanzaa). Here are the best in circulation, rap rarity bliss laced with crazy tape hiss...