Ready availability only I think. HD disks are better as to cost, protective casing, access and transfer speeds, compatibility, and probably more. JVC not only had D-VHS recorders and tapes but also JVC HD camcorders. Sony later introduced Sony Blu-ray recorders and PC drives and later also announced PS/3 with Blu-ray support and Sony HD camcorders (one model already sold and used well) so in some months, the only major advantage of D-VHS will be gone.