Contains broadcast episodes 7 through 12 in MP3 format. Episode 12 featured Ishihara Kaori (voice of Mina) as the guest.
By the way, I only recently figured out why they include "tomatoes" drawn by different cast for certain CDs purchased from "Oto Mart." Ignoring the fact that "oto" is "sound" in Japanese, the whole name forms "otoma-to." Pretending that the first "o" is honorific, even though it isn't, it becomes "o toma-to." toma-to -> tomato. Those whacky Japanese! Of course, they don't ship overseas so whatever.