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Free Video DVD Converter Ultimate. This too can accept any video and DVD videos. Once you load video source, you can click "Edit" to pop up a new window where you can trim video, crop video, add subtitle/watermark, etc. Very useful tool and it is totally free without watermark output.
I have ever used Pavtube Video Converter Ultimate compressed my video size. It can keep the perfect video output quality when ouputing small file size.
<a href="http://www.pavtube.cn/bytecopy/"> Pavtube ByteCopy </a> is a powerful program with the ability of backing up Blu-ray/DVD collection to multi-track MKV, ripping BD/DVD movies to MP4 and MOV with multiple audio streams, and converting BD/DVD from hard discs to virtually any popular video and audio format like m3u8, H.265, MKV, etc. so that you can freely watch movies on mobile devices, 3D TVs, Xbox One S, PS4, PS3, Plex, WDTV Live, Roku Ultra and more devices.
Actually, you can convert DVD to .mp4 .m4v .mov using Handbrake, ByteCopy, RipIt, FreeMake, etc then play ISO on Apple TV. You can refer to the tutorial: http://www.pavtube.cn/dvd-to-apple-tv-4.html
Pavtube Video Converter Ultimate is strongly recommended here. It can convert MTS, MKV, MP4, Tivo, PVR Recordings, HEVC, AVCHD, 3D Video, AVI, TS, even Blu-ray and DVD to another video formats keeping excellent video and audio quality. Official site: http://www.pavtube.cn/blu-ray-video-converter-ultimate/
If you want a free tool, Free DVDAid is prefect to rip DVD to Western Digital My Book. But Free DVDAid can't rip Blu-ray. If you want to rip Blu-ray, you can try Pavtube ByteCopy others recommend.