Yeah, I found the set in China. Definitely a China-only thing, mixing in rips of UK, Dutch, German and American DVDs of Herzog's work. Not a complete overview, but most of his significant feature work is featured within it. It joins my Tinto Brass "collection"* boxed set, and soon enough I'll grab the Ingmar Bergman, Luc Besson and Takeshi Kitano boxed sets that are ubiquitous around these parts (midwest China). I also have my eyes on the 29 disc Benny Hill set I glanced at, in my favorite shop.
Many of these sets come in two versions: the high quality single disc-single film versions, which run about 100RMB for sets with 20 discs, and 70RMB for sets with a dozen discs, and the poor quality, "load up six films on two DVDs" sets, which are only really 1/2-1/3 of the price**, but 1/8th of the quality.
*The Tinto Brass set features all of his feature films except Mon Amour, which I had to purchase separately for 6rmb.
**30-40RMB, but just about the worst looking DVDs on the planet.