购物英语：DVDOrVCR?_购物英语

salesperson: may i help you, sir?
simon: yes, i want to buy a vcr.
salesperson: well, we have many models to choose from here.
do you have a particular brand you want?
simon: no. i only want it to be a very good one. the best.
it's a graduation gift for my son.
salesperson: i see. and does your son have a vcr now?
simon: well, he uses our vcr at home.
but he's going to university in the fall, so he needs his own vcr.
salesperson: does he watch a lot of movies?
simon: yes, he sure does.
in fact, he wants to become a movie producer himself.
he wants to study film at the university.
salesperson: i would like to make a suggestion then, sir.
simon: please do.
salesperson: if your son wants to study film,
probably he will start to collect movies himself.
simon: yes, i know that. so i want him to have a good vcr to use.
salesperson: may i suggest you consider buying him a dvd player instead?
simon: dvd? isn't that like a cd?
salesperson: it is very similar. the technology is the same.
simon: why is a dvd better than a vcr?
salesperson: for one thing, sir, the quality of the image is usually better.
that's because it's digital.
simon: but isn't it more expensive?
salesperson: it is a little more expensive, sir.
but there is one important advantage which your son might appreciate.
simon: what's that?
salesperson: if your son starts to buy video tapes, he can't keep them very long.
simon: and why not?
salesperson: video tape breaks down after fifteen years.
so if he collects a lot of tapes, after fifteen years they will all start to rot.
simon: hmm. is that true?
salesperson: yes, it is, sir.
simon: well. and what about dvds?