Basicly as one of the "young generation who thinks media is free" so im going to write my poor english thoughts :
Music : Basicly i think Music (in mp3 form) Should be free and im not willing to pay for any music in pure digital form, as an artist/band you should make your money through tours and live concerts.
If im a fan of some band and realy love the music i would (and have) went out and bought the original cd. but im more paying for the cover and artwork then the music itself since i got it in mp3 form anyway.
the main mistake the music industrie makes is that every download is a lost buy. no its not. i only buy the cds i truly love and listen to over and over. the rest in the pre digital days i probably would only record it from radio.
Movies/tv series : basicly the same thing although its a bit harder to justify.
if i go to the cinema to see a move i dont go there because i can only get the movie in high quality there. with a decent tv and a broadband internetconection getting blueray quality movies is no problems at all. if i go to a cinema i pay for the atmosphere, the feeling, the popcorn etc. the extra value i get there makes me pay, not the media itself.
for dvds/blue rays the same is true as for cds. i buy them not because i need it to watch the movie/series. i buy it for its cover, the artwork, the good feeling of having something you realy love standing on the shelf. i usualy still watch the downloaded version even though i own the original.
best example for this is south-park. i started to slowly buy there hole dvd set (seson 1 - 12) just shortly after they started to freely stream them on there homepage.
books : now here it gets realy hard since there is few extra value in a hardcover book exept its pure presence on the shelf. but if i realy love some book ive read (or rereed it over and over) i will surely buy a printed version sooner or later.
the future for media payment is simply : digital version for free. to earn you money you have to either perform/present it in a form which gives it extra value (in a non digital form) so ppl will pay for it and build a fanbase. because having free digital media can also be a huge plus since it makes you known to a broader possible fan base. and if 1000 of ppl download your free digital album. some of them will become fans and go to he next concert or buy the phisical form if its presented in the right way.
the real high investment projects like avatar though will slowly die out in my opinion wich isnt such a bad thing since high budget productions usualy lack in innovation anyway
wow thats a wall of text. sorry for my poor english, im from germany so english is not my nativ language and im hiiighly oversleepy

and also got the flue abit (i hope i didnt loose the red line too much.....on reread oh boy i sure did!)