"IMSLP stands for International Music Score Library Project. The logo is a capital letter A, taken from the very first press-printed book of polyphonic music, the Harmonice Musices Odhecaton, published in 1501. Its printer, Ottaviano Petrucci, is this library's namesake." --From home page
A performing arts video library of operas, ballets, documentaries, live concerts, and musical tours of historic places. It includes the Naxos DVD label, Opus Arte, Arthaus, Dacapo, EuroArts, among others and is continuously updated.