As of 2025, physical copies of JUC210 are out of print. Original DVDs sell for premium prices on secondary markets (often ¥8,000 to ¥15,000 in Japan). Regarding the "Extra Quality" digital versions: these are largely fan-preservation projects.

Many of Kazama's classic works were originally filmed in standard definition. "Extra Quality" often refers to high-definition (1080p) or even 4K AI-upscaled versions that provide much clearer detail and better color accuracy.

When searching for , the term "Extra Quality" (often abbreviated XQ or EQ) is a fan-driven designation, not an official studio tag. It refers to specific digital encoding and source material.

Often associated with the "Extra Quality" or high-definition remaster series from major adult labels.