If hard drive cost / data plan is the main concern, just compress them. Try x265 --lossless only for crystal clear video - Skip. Try x265 --cu-lossless for not-so-clean video - Skip. Noisy video, try sub-optimal encode that preserves the signal strength and mitigate the quans or phys interference as much as possible in the present first encoding process, and maintains the best visual quality by some futuristic state-of-art encoder in the second encoding process (perhaps forever away). Try x265 --tune SSIM / --tune PSNR.
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