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 Japan News News

Sonic The Hedgehog Co-Creator Yuji Naka Joins Square Enix

Alex Irish
Famed Japanese game developer Yuji Naka has joined Square Enix as a developer. The transition happened earlier this month, as
3DS Europe News FEATURED Japan News News North America News

Bravely Default Hits One Million Sales Worldwide

Antonin Kořenek
Square Enix has announced that Bravely Default has surpassed one million sales worldwide. An interesting point is that a good
Channels Japan News News PS4 Vita

Fate/Extella Link’s First Full-Length Trailer Released

David Fernandes
Marvelous Entertainment has recently released the first full-length trailer for the upcoming sequel to Fate/Extella: The Umbral Star, Fate/Extella Link.