
There is a way for you to edit MP4 video in HD even with a slow and old laptop. This trick was given to me by a friend who's a professional filmmaker and it applies to all kinds of videos.
However, there seems to be a high interest in GoPro editing and in this tutorial I'll refer to GoPro HD footage which comes in H.264 MP4 encoding. This experiment and all my video editing, including GoPro clips, are done with Magix Edit Pro Plus. I like it for its simplicity and ease of use.
Now, if your default video editing software cannot handle this kind of videos, then you can convert MP4 to AVI with MPEG Streamclip (a free piece of software).
So you wanna edit your outdoor videos but your computer is too old and, whenever you import the HD video files to your timeline, the software stalls. Here's what you have to do:
1. Convert all your video files to a smaller resolution and bit rate
The thing to remember from the start is to use the same video format and the same aspect ratio throughout this process.




