It seems there are quite a few people who are having disc reading trouble for Xenoblade Chronicles. Well, Nintendo Support has a page for you that better describes why it might happen and what you can do about it.
Nintendo Support 

Ryan Tyner
Ryan is an owner and manager of the oprainfall website, mostly managing changes needed for the website and maintenance. He also writes articles from time-to-time. His gaming interests include mostly RPGs; both Western and Japanese. Ryan has a graduate degree in psychology.
https://www.facebook.com/ryan.tyner.in.az

Related Articles
Channels Europe News News PS3 PS4

PR: Guilty Gear Xrd REV 2 is coming to Europe in 2017

David Fernandes
PQube is excited to announce that we will be releasing GUILTY GEAR Xrd REV 2, the latest installment in Arc
Android Anime Channels iOS Mobile News North America News

Fate/Grand Order NA – Dead Heat Summer Race Event Starts July 29

Patrick Aguda
The official English social media accounts for Fate/Grand Order have announced that the Dead Heat Summer Race event would be coming to
The Garden of Words / Kotonoha no Niwa | Takao and Yukino
Anime News

TV Tokyo Airs 5 Minutes of The Garden of Words Footage

Andy Na
From the auteur anime director Makoto Shinkai (Voices of a Distant Star, 5cm Per Second) comes the first five-minute scene