Are you planning on re-encoding anyways? For DVDs Handbrake can read and re-encode them directly so there’s no need for an intermediate.
If you’re not planning on re-encoding or we’re talking BluRays then makemkv is the most used and allows creating disc images, file extraction to drive, or file extraction to drive in MKV container.
De-telecine: default De-interlace detection: default De-interlace: decomb
Video encoding: x265 10bit (don’t use NVENC, Intel, or AMD hardware encode)
Preset: slow
Quality rate factor: 16
The above should be suitable for most DVDs and yields good results of 1/4 to 1/2 the size going from MPEG2 to HEVC.