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My T3i stops recording mid-video

New Contributor

I have a T3i which frequently stops recording mid video.


  •  I have a class 10 card
  • The card's been formatted
  • It's only after a few seconds and then just stops.
  • There is plenty of room on the card

Any ideas what is wrong?


Respected Contributor

Is it a name brand card purchased from a reputable source?


There are lots of counterfeit SD cards that may not perform to the specs on the label.

I believe so. It is a Sandisk which I bought from Radioshack

Esteemed Contributor

Which Sandisk card is it?  


Is this Sandisk card blue?  If so, you've got a Sandisk "standard" card (Class 4) and that card has a slow transfer speed -- to slow to keep up with video.


You need a Class 10 card... that'd be a Sandisk Ultra, Ultra Plus, Extreme, Extreme Plus, or Extreme Pro card.



Tim Campbell
5D III, 5D IV, 60Da

Frequent Contributor
Toriel mentioned it's a class 10 card...