While the Iowa samples have been criticized, they are the only multi-sampled, multi-velocity layer orchestral instrument samples out there for many instruments. With some editing, first by Blackhole12 and then me and some digital tuning, I think they sound quite reasonable. With a few exceptions they are all the basic sustain articulation.
The main negative at this point is that they are quite short with most samples coming in at about 2 seconds. Having tried my hand at looping samples, I'm both unskilled at the art and far too lazy to loop something like 2500 samples. If anyone would like to loop them please do and let me know.
As with the Sonatina the first set of instruments contain Big Bob's WIPs scripts allowing for scripted legato and vibrato, fake round robins and playing with wind controllers. The ensemble set of instruments uses Jay Bacal's script to emulate multiple instruments playing at once.
Public Domain samples by the University of Iowa edited by Blackhole12. Kontakt instruments are placed in the Public Domain. The Ensemble Scripts are by Jay Bacal and the WIPS are by Big Bob with all rights are retained by their respective authors. Thanks to Matt McKay for heavily rewriting the bigcat GUI script.