Legitimate 1080p versions of this episode exist today via official Blu-ray releases (which came out in the late 2010s). Those Blu-rays use modern codecs (H.264 or H.265) and proper color correction. The 2010 pirate rip is obsolete and poor quality.
This blog post highlights , titled "The Medical Ninja's Student" . Naruto Shippuden Episode 11: The Medical Ninja’s Student movies4uvipnaruto shippudens01ep11201080
: Indicates Season 1 (or the first overarching production block). Legitimate 1080p versions of this episode exist today
Even if the file plays, the experience is poor and legally/factually dubious. If you want to watch Naruto: Shippuden Episode 11 in good quality, use an official streaming service — many offer free trials or ad-supported tiers. movies4uvipnaruto shippudens01ep11201080