sadly, that's becoming more and more true as each day passes. especially since everyone seems to be going to HD 'stuff' online over the last year or two. but at least DVD is not ancient like CD-R's as using those would get quite expensive for DATA backup.
but right now ill be staying with DVD for a while i suspect until Blu-Ray stuff becomes close to dirt cheap. say about 50-75 MAX for the burner and $1 dollar max per disc.
plus i figure by the time blu-ray stuff gets dirt cheap by then the technology/burners will be up to a reliable level like how DVD's are now i would think. as usually the early burners/discs are probably generally more crappy vs once it gets more mature.
p.s. but at least DVD is still a nice backup option for standard def files like XviD (.avi) but nowadays everyone seems to be moving onto x264 (h264) because of the HD stuff and it does look quite good. but standard def is still a nice option for less important stuff.