user667: Is there a generic data recording rate for the different capture options on GoPro Heroes? 
I'm trying to determine what size of SD card I should buy for my GoPro and I'd like to get an approximation. Is there a grid somewhere that details this?

user7976: Have you try to go to the product web site and check?
http://gopro.com/support/articles/recording-time-in-each-video-setting
I know it is about Hero2, but i think the values will not change much. Be aware fully charged battery will power the camera for no more than 3 hours

667: <p>Is there a generic data recording rate for the different capture options on GoPro Heroes? </p>

<p>I'm trying to determine what size of SD card I should buy for my GoPro and I'd like to get an approximation. Is there a grid somewhere that details this?</p>
 7976: <p>Have you try to go to the product web site and check?
<a href="http://gopro.com/support/articles/recording-time-in-each-video-setting" rel="nofollow">http://gopro.com/support/articles/recording-time-in-each-video-setting</a></p>

<p>I know it is about Hero2, but i think the values will not change much. Be aware fully charged battery will power the camera for no more than 3 hours</p>
