Because 1997 was the last year of "Analog Soul." Princess Mononoke hit theaters just as digital ink was taking over. Hayao Miyazaki drew the 144,000 cels for this movie by hand. The 720p resolution is actually the ideal resolution for 35mm film scanned for HDTV. Going higher doesn't reveal more detail; it reveals the limitations of the optical composite. At 720p, the magic trick works perfectly.
At first glance, this filename looks like a relic from the era of Winamp and LimeWire. But look closer. This specific combination of specs isn't an accident. It is a masterclass in optimization for the film enthusiast. Here is why this "small" file is a giant killer. Princess Mononoke -Dual Audio- -1997- HDTV 720p - 650MB