MarsSeed [1] filed a deletion request for dvdread-git [2]: No need for this VCS package anymore. Development has stopped in 2016. [a]
Repo carries a much newer and better maintained alternative, the VLC project's libdvdread. [a]: https://github.com/xrgtn/dvdread [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/dvdread-git/