Help getting started with Roku devices, including setup, connecting your device to your TV, linking a Roku device to your account at my.roku.com/link, adding channels, subscribing to services, and more.
Convert your DVDs to MP4 format using Handbrake, WinX DVD Ripper, MakeMKV, or other DVD rippers. Stream the MP4 video to Roku directly.
Handbrake is not a ripping tool. MakeMKV rips into the MKV container, which is supported by all Roku devices, so it's my ripper of choice. However, depending on the disc you are ripping (DVD, Blu Ray, UHD Blu Ray) you might end up with an audio track as the default that isn't supported by Roku. With MakeMKV you can pick and choose what audio and caption tracks to include, so if there's a DTS track (and you aren't using an AVR/soundbar that supports DTS) you can exclude it and use the alternate DD track.
When ripping Blu Ray discs, you have to watch for the occasional disc that uses VC-1 video. Roku devices will not play that video codec, so in that case you'd need to use something like Handbrake to convert the video to H.264 (and newer Roku players support MPEG-2).
Dan Roku Stick (3600), Ultra (4640), Ultra (4670), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Nvidia Shield, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.