Personally, I err on the side of less compression but I store my media on HDDs not SSDs. You could compress a 4.7gb DVD to as small as 700mb or go big and leave it in its original format.
At DVD resolutions a modern CPU will be pretty quick at x265 encoding. Im transcoding some of my media over to x265 10bit via Handbrake, and sometimes notice that. In terms of what setting to choose, if this is your long term archive, I'd recommend against hardware encoding and stick to libx265. You can use the ISO file ripper and converter to convert. Using 10-bit usually equates to higher quality at the same bitrate, even for 8-bit content without much change in speed. Many people recommend RF21 for DVDs using libx265 which would squish the average DVD to around 1.2gb. I.e., some people still swear that x264 is better than x265 to their eyes for their content. Video compression ratio (bitrate/filesize)Įveryone has different opinions on what setting is best for their use, and you should trial some different RF settings to see what works for you. The different settings / encoders affect the three corners of the encoding triangle. This will require re-encoding with thus some loss of quality but a recent copy of FFmpeg will allow you to convert to 8bit hevc from 10bit quite easily. Nvenc uses Nvidia's hardware accelerated NVENC encoder. QSV uses Intel's hardware accelerated Quick Sync encoder. AQ enabled with auto-variance and edge information. This is recommended for 8-bit encodes or low-bitrate 10-bit encodes, to prevent color banding/blocking. AQ enabled with auto-variance and bias to dark scenes. X265 uses libx265 and is software encoding done on the CPU. This offsets the tendency of the encoder to spend too many bits on complex areas and not enough in flat areas.
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