The code follows a standard naming convention used in the Japanese adult video (JAV) industry. The prefix identifies the studio or series—in this case, "Sky Angel Blue"—while 052 denotes the volume number in that sequence. Production Studio: Sky High Entertainment. Release Date: January 14, 2011.
This was notable for being a Blu-ray Disc version, which at the time of its release was the standard-bearer for high-definition home video. Runtime: Approximately 91 minutes of uncensored content. Key Features and Content
Because the prefix "SKYHD" is similar to branding used by for their Sky+HD satellite boxes, users sometimes mistake the code for a technical model number or error code.