Based on listings from Google Groups and Yahoo! JP Flea Market, the specific details for this volume are as follows: : Secret Junior Acrobat Vol. 6 (featuring performer Xhu Xhu or Zhuzhu-chan ). Release Date : August 8, 2008. Runtime : Approximately 40 minutes . Resolution : 800 x 600. File Formats : Available in AVI , ISO , and MKV formats. Size : varies by format, typically around 333 MB to 913 MB .