CBR is Constant Bit Rate, VBR is Variable Bit Rate. In a CBR MPEG stream the encoder uses the same amount of bits for every second of video. So if you set it to CBR with a bit rate of 5Mb/s all of the video will be encoded using 5 megabits per second. A 2 pass is always better (although longer render time) as the 1st pass is analyzing your project and the 2nd pass actually executes the compression. Better results using 2 pass. During a VBR encoding process the bitrate of the media file will dynamically increase or decrease depending on the media files bitrate needs. VBR takes longer to encode but produces the most favorable results as the quality of the media file is superior. VBR is most commonly used for http delivery if video content (http progressive) When it comes to selecting VBR vs. CBR, It is almost always recommended that you use VBR encoding for your media files as it provides higher quality files. We would suggest that you do not use CBR unless you have a specific need for playback on a device that only supports CBR. So you should try the following workflow: 1. Use VBR 2 Pass (remember longer render times) 2. Diable Max Depth 3. Enable Max Quality 4. In my experience if you have all your drivers updated and use hardware acceleration having both ticked shouldn't change gamma. I use this for all my projects and never ran into gamma or any issues, But this is was on CC2018, CC2019 might have changes a few things, Trust this helps you and gets you back on track Mo
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