Seems like a couple of people are having this problem, and what ive came to figure out its usually the fist few games that you play on your xbox one that do this.
The problem, which is your xbox one recording clips without you asking it to ( based off certain task being done, for exp. in fifa everytime I get a corner, it records a clip )
is something that needs to be addressed, some people say "who cares" because the xbox one simply deletes clips its own which it reaches a certain number, however this is a problem because that means clips which YOU on purpose recorded, will get deleted because of your xbox recording clips on its own that you dont care for.
the only way of turning this off, is by turning your DVR off which will disable the "xbox record" command aswell, which clearly is not a solution