First of Octember

I have been toying with the idea of having students read picture books on camera for use at the lower elementary levels, sort-of virtual book buddies. We can't do real book buddies because that would involve busses and aome buildings on letter day schedules while others are on week-day schedules. It does not have to be fancy but it may help my students with fluency while helping a struggling reader at the lower level. My issue is copyright. Is something like this a violation? I see them all the time on YouTube and they are not getting pulled down. So what is the copyright friendly thing to do?