I am in the process of ripping my Blu-ray boxsets to a NAS and have noticed that the same Handbrake profile will produce wildly different size output files between different TV shows. Within a given season of a show, they are broadly similar though. As an example, using H.265, Fast, Constant Quality at RF 22 with automatic anamorphic and a 5.1 AC3 soundtrack at 640kbps the first season of Heroes gives files in the c. 1.7-2.1GB range. The excat same profile used to encode The X-Files gives files in the range 0.9-1.1GB, almost half the size.
The source bitrate is about the same for both shows from the blu-ray rip, at around 24MBps however the output files are up to 7MBps for Heros and 3.5MBps for the X-Files. Is this difference in file size simply due to the difference in on screen content between the 2, or have I messed up? X-Files is a much visibly darker programme with quite flat colours, so maybe it compresses better since there isn't as much going on?
Steps to reproduce the problem (If Applicable):
Encoded on 2 different PCs
HandBrake version (e.g., 1.0.0):
Operating system and version (e.g., Ubuntu 16.04 LTS, macOS 10.13 High Sierra, Windows 10 Creators Update):
Windows 10 Home
HandBrake Activity Log ***required*** (see How-to get an activity log)
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