Iphone video folder in camera roll?

I use iPhone 4, IOS5. Usually both photos and videos which I take go to the camera roll.

I also use the application called "camera+" and took photos with it on 31st Dec. I also took two videos on that day, with iphone camera, not "camera+".
And I saved photos I took through camera+ into iphone's camera roll.

When I checked camera roll All folder, all the photos I took with camera+ were in it, but the videos I took with default iphone camera were gone. (Because the date is the same, so they re-wrote on those?)
But when I choose "videos" folder, then those videos I took on 31st appear.So, videos exist, but I can't copy to my computer or I can't move to anywhere.

Since those videos are precious to me, if there's a way to save those videos (into computer), or maybe move back to "all" folder? Please advise me.

I tried to attach with email, but it said "too long". Videos are around 3 minutes.

First world problems

  • When you watch videos from the video folder on the iphone, does it use data? I can only use a little data and i'm going on a vacation… I have downloaded videos and i want to watch them on the drive up to the place. When i tried it had a loading circle by the 3g and i didn't want to watch because it looked like i was using data… Am i?
  • Transfer iphone 5 camera roll video to pc? I recorded 40 minutes of kendrick lamar concert in my iphone and i want to tranfer it to my pc, how do i do that?
  • Photos from iphone camera roll are showing up on ipad camera roll? The pictures from my iphones camera roll are showing up on my dads ipad's camera roll. It is really annoying. Please Help. I tried calling Geek Squad but they were absolutely no help at all. I didn't share these photos through that icloud thing and i didn't send them to the ipad in any way. They just showed up on the camera roll. Please Help ME! I need to get them off the ipad and prevent them from showing up next time i take a photo on my iphone. anything will help.
  • Is 8.1 megapixels for a camera/video camera good? I use the a Sony camera for videos and pictures. It is 8.1 MPs & it has 5x optical zoom. Do you think that that is good enough for good quality pictures and videos? Or should I use my iPhone 5's video camera/camera instead?