I rip to a full bit-rate ISO image of the main movie of a DVD. I delete extra languages, subtitles. I often leave second/third audio tracks with director's commentary.
If I want to view the bonus material, I grab the DVD of the shelf. (usually, we'll watch the bonus material when we first view the movie)
I own all the DVDs on my server. They are there for the convenience of playback.
Most DVD ISO images average between 5 and 6 Gig. some are as low as 3 Gig, some as high as 8. Since I project on a 110 inch screen in my theater, I do not want to lose any detail by compressing the image.
Joe L.
Do you use handbrake to remove the extra s too when your remove them?