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JAV is a studio-driven industry. The code prefix stamped on every title — SSIS, IPX, CAWD — traces back to a specific label, and understanding who's behind the label tells you a lot about what you're going to get.
The biggest names in mainstream JAV are S1 No.1 Style, IDEA POCKET (IPX), Prestige, SOD Create, and Moodyz. These studios produce high-volume, high-production-value content and tend to define what most people think of as "mainstream" JAV. They have dedicated rosters of exclusive performers, branded visual styles, and consistent release schedules that make their output easy to track.
Below the majors are dozens of specialist labels. ATTACKERS handles dramatic SM and dark-themed productions. Wanz Factory (WANZ) specializes in mature performers and is one of the largest names in the jukujo category. S-Cute leans heavily into amateur aesthetics. Each has its own identity, and fans tend to develop strong opinions about which studios handle their preferred genre well.
On the independent end, doujin labels and small production circles create content that doesn't fit the commercial template. These often appear on DUGA rather than MGS, where major studio relationships dominate the catalogue.
Studios change over time. Labels merge, rebrand, launch sub-labels, or retire. The code prefix history documented on enthusiast databases is often the most reliable record of what a label was and what it's since become.
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