The 8-disc "Complete Collection" (released around 2011) is particularly stuffed with treasures:
Harry Potter 4K 8-Film Collection (Bilingual) [4K UHD + Blu-ray + Digital] [Region Free] [Blu-ray] Fishpond.com Go to product viewer dialog for this item. Harry Potter Hogwarts Collection (Blu-ray + DVD) - eBay harry potter blu ray
: Widely considered the "holy grail" for fans, this set includes every movie on Blu-ray, DVD, and UltraViolet, plus a massive amount of bonus content. Users on Reddit recommend this as the best trove of features, though it is currently out of print and can be expensive. The 8-disc "Complete Collection" (released around 2011) is
In 2009, Warner Bros. launched the "Ultimate Edition" series, promising the definitive fan collection. Each two-disc set included the theatrical and extended cuts (for the first two films), a gleaming magnetic box, a photo booklet, and crucial new special features, including the excellent "Creating the World of Harry Potter" documentary series. For a time, these were the gold standard. In 2009, Warner Bros