well just because they can put 50 tb of info on a dvd doesnt mean that all that tech will produce is 50 tb dvds. im sure it could be easily scaled down (1tb discs or something), or, more importantly, appied to other things. The basic concept of this right now is that with a substance that is relatively easy to produce, we can store $#!%loads of info. Its completely new right now and its very likely that with time we could find ways to apply it to hard drives ram, etc etc.
The surrounding tech will need time to catch up as well i dont know how you would go about putting info pn those things but like he ^^^ said, you might need some super fast dvd burner or something. If the pressure is put on companies to develop[ thenew required technology (ie theres money in it) then i have no doubt that adequate support technology will be developed (i mean have we really reached the maximum extent of burning technology?... no, weve just never had to develope a super fast one yet, cds/dvds structurally can not take much more than the speeds in a 52x burn, and who needs a cd in less than 30 seconds so why get faster with current tech) Anyway, i dont see a lack of support technology as a reason not to pursue this more... that would be like saying cars shouldnt have been developed because the highway system wasnt developed at the time...