The Conjuring relies heavily on what you don't see. James Wan uses long takes and slow pans. A poor-quality file would ruin the tension by making the dark scenes look "muddy." The version ensures:

Based on the purportedly true case files of the Warrens, the film follows the couple as they assist the Perron family, who are terrorized by a dark presence in their 1971 Rhode Island farmhouse. Critical Reception: The film was a massive success, earning an 86% approval rating Rotten Tomatoes and grossing over $319 million worldwide against a modest $20 million budget. Audio and Video Specifications