Guillermo Aguilar Álvarez is a revered figure in the world of physical media, particularly known for his work in production during the golden age of Latin American cinema. His most notable film, *Those Years* (1974), stands as a landmark in Mexican film history, earning acclaim for its poignant storytelling and rich cinematography. This film is particularly sought after by collectors for its limited original VHS and DVD releases, which encapsulate a unique era of filmmaking that resonates with audiences even today. Collectors treasure Alvarez's contributions not just for their artistic merit but also for their cultural significance. As physical media enthusiasts seek to build comprehensive collections, *Those Years* remains a centerpiece due to its influence on subsequent filmmakers and its representation of the social themes of its time. Alvarez’s meticulous attention to detail and commitment to storytelling continue to inspire collectors who appreciate the tactile experience of owning physical copies of films that shaped cinematic history.