No difference 50M vs 25M vs 16M bitrates

[Martin PP]

Hi,

 

I tested these 3 bitrates and found no difference in image quality, even after editing the videos in Final cut pro. I was told higher bitrate is better, especially when you plan on editing videos. I wonder why I can't tell the difference. Am I missing something?

 

In details :

The 3 videos were Full HD (1080p). They were imported in Final Cut Pro and exported as a "master file" (using H.264) without any real editing. I did several rounds of importing-exporting, in an attempt to lose file size and quality. Then I watched them on a 1080p screen. My eyes noticed no loss of quality. File size decreased a little when exporting the first time, but stayed the same on subsequent rounds of exporting.

 

You input will be greatly appreciated! Thank you!