Extras include commentaries, featurettes and BD-Live functionality. Season 8 was released on Blu-ray on May 29, 2009, in region B. Other releasesCSI has also been released as a series of mobile games. In Fall 2007, CBS teamed up with game developer Gameloft to bring CSI to mobile phones. The first of the series to be published was CSI: Miami. The game features actual cast members such as Alexx Woods and Calleigh Duquesne who are trying to solve a murder in South Beach with the player's assistance. The game is also available for download on various iPod devices. In spring 2008, Gameloft and CBS released "CSI: Crime Scene Investigation – The Mobile Game" which is based on the original series in Las Vegas. This game introduces the unique ability to receive calls during the game to provide tips and clues about crime scenes and evidence. As for the storyline, the game developers collaborated with Anthony E. Zuiker (the series creator) to ensure that the plot and dialogue were aligned with the show's style. Books True Stories of CSI: The Real Crimes Behind the Best Episodes of the Popular TV Show (published August 2009)—Katherine Ramsland follows the evidence and revisits some of the most absorbing episodes of the phenomenally popular CSI television franchise, and explores the real-life crimes that inspired them. She also looks into the authenticity of the forensic investigations recreated for the dramatizations, and the painstaking real-life forensic process employed in every one of the actual cases—from notorious mass murderer Richard Speck, through the massacre of Buddhist monks in an Arizona Temple, to a baffling case of apparent spontaneous combustion. Comic books In 2003, comic book publisher IDW Publishing began releasing a series of one-shots & miniseries based on all three CSI series, with the majority being based on the original Vegas-based series. In September 2009, Tokyopop released a manga version of CSI written by Sekou Hamilton and drawn by Steven Cummings. It centers around five teenagers working at the Las Vegas Crime Lab as interns as they try to solve a murder case of a student at their high school, which leads to a shocking discovery. Grissom and Catherine are seen now and then, as well as other CSI characters. Video games Nine video games based on CSI: Crime Scene Investigation have been created. Three games based on the spin-off series CSI: Miami and one for the CSI: NY