The "A..." likely stands for the release group (e.g., AMZN for Amazon or Anoxmous ). Subtitle Compatibility & Sourcing
You can find and report on subtitle files for this specific release at the following repositories: subtitle Magic.Mike.XXL.2015.720p.WEBRip.x264.A...
x264 , which is the standard H.264 video compression format used for high-quality, efficient file sizes. The "A
720p (1280x720 pixels), providing High Definition (HD) quality. efficient file sizes. 720p (1280x720 pixels)
Magic Mike XXL (2015), the sequel to the 2012 film Magic Mike .