The alphanumeric code serves as the distinct product identification or publisher's catalog number for this specific volume. Catalog numbers are critical in the Japanese media distribution landscape, allowing domestic retailers, online storefronts, and international collectors to differentiate between hundreds of idol and image video titles. Format : Standard Definition (SD) DVD Series Title : Sakurako's Extracurricular Class (Vol. 21) Featured Talent : Sakurako Takaoka & Momoka Okamoto
: Much of the early-to-mid 2000s and 2010s junior idol content was originally published exclusively on physical DVDs in 480i Standard Definition. icdv30034 sakurako takaoka momoka okamoto sd upd
: Idol Image Video (U-15 / Junior Idol segment) The Featured Talent 1. Sakurako Takaoka The alphanumeric code serves as the distinct product