For the gopro file you could convert to Cineform avi's, they are easier to edit.
For the timelaps import them as an image sequence, easier to handle.
In fact my software was hanging due to my sli system; I turned it off, now it is working perfectly! You know that it's impossible importing still images as an image sequence to Ad. premiere, you can do this with Af. Effects only. To make a movie with the still images, I have done the following...
The JPEG pictures are 2592x1944 pixels, so I created a sequence with resolution close to this...
I went to preferences > general > I Changed each still image defaullt duration to 1 frame as you can see in the link below.
So when I drag all the still pictures to the timeline, each still image should behave as a frame of a movie, shouldn't it? But it doesn't, look at this.
See in the last link? Each stil image / frame lasts 5 seconds! I have to select all of them and changing its duration to 00;00;00;01. It works, but it takes a lot! How could I make my life more simple?
You can import an image sequence into Premiere
this is how its done:
How could I make my life more simple?
You set duration for the stills in the preferences prior to import.
Yes, I was wrong: Adobe premiere can import stills as movies. Everything you have to do is checking the box numbered stills when you import it...Thanks a lot.
PS: I think the box should be called "import as a movie"; just like in After Effects. That's what made so confused...
Glad you got it working.