http://virtualplaying.com/
The description from his site says:
He has done quite a bit of meticulous audio processing to get the samples from such disparate sources to sound good together. Even Mattias Westlund considers this to be a worthy successor to Sonatina Symphonic Orchestra.Virtual Playing Orchestra is a free, sfz format, sample library that attempts to emulate multiple articulations of the solo and section instruments from a full orchestra using the best samples from Sonatina Symphonic Orchestra, No Budget Orchestra, VSCO2 Community Edition, Phaded Productions, University of Iowa, Philharmonia Orchestra and extra samples from Mattias Westlund, author of Sonatina Symphonic Orchestra.