The De Rossi Manuscript No. 541, at Parma, was discovered by S. Buber to contain, among other things, midrashim on four of the five "megillot": Canticles, Book of Ruth, Lamentations, and Ecclesiastes; these he published (Berlin, 1894) under the title of "Midrash Zuṭa," to distinguish them from the "Midrash Rabbah."
Although the two collections contain a few parallels, the Shir ha-Shirim Rabbah does not contain those numerous haggadot which especially distinguish the second collection.