ALL and I mean ALL video editors have to decode the content to flat images and re-encode back to the intended format.
Not one editor I know can keep the content in 3GP (or almost any other encoding) from start to finish. I wonder if you remember why this is?
If you just need to rotate then there are solutions such as HANDBRAKE and Virtual Dub but I can not write tutorials on this. It's on the web but the requirement is for now not possible.
I recently purchased a new computer, and need some help finding the
right video editing software. My previous computer couldn't support .3gp
files (the format cell phones shoot video in), so I bought AVS Video
Editor. Worked fine. Now the new computer (Win7 Home Premium) has a
version of Windows Movie Maker on it that seems to play nice with .3gp
files. BUT the new version of Windows Movie Maker is WAY too simple, or I
just can't figure out where everything is. So I need to purchase new
software. AVS might be fine again, but if there's any other input, I'm
Here's what I need:
1. Ability to work with .3gp files is a must.
2. Ability to display the preview on top and timeline/storyboard on
bottom with separate lines for extra audio, subtitles, etc. is
3. If I could rotate videos 90 degrees, that would be nice. Sometimes cell phone videos don't get recorded at the right angle.
4. Under $100 for the price.