record本题有关这款DVD的产品特征。录音原文中的has an extra button…提示其后为答案。

S: OK. Let me explain a bit to you about the DVD players that are in your price range. First, there’s the DB 30 which has only got basic features but it is a bargain at ￡69. Now all the DVDs come with an after-sales service that starts when the guarantee runs out. As it’s so cheap the DB30 comes with a limited after-sales service as it only includes parts. You would have to pay for most of the repair.
C: Seems OK.
S: Then a slight grade up from that is the XL 643. This comes with an additional feature in that it has_an extra button allowing you to record. That’s quite useful.
C: Oh yes. That would mean spending less on DVDs to watch.
S: Yes, so you’d make the extra money back on it that it costs. Let me see how much it is... ah, yes, that one’s actually reduced at the moment — from ￡79 to ￡71.99. I think it’s worth the extra myself.
C: And is that the same level of after-sales service as the other one?
S: Well, you get a bit more for your money because what we are offering is a discount on labour. So you don’t pay the full price if you have to call an engineer out.
C: I see.
S: Then the last one is this TriX 24. It’s a very good player and you can use it to listen to your CDs as well as watch DVDs.
C: It looks nice — but I bet it’s expensive.
S: No. It’s not the top of the range. Let’s see — yes it’s ￡94 — but, what you have to remember is that, that includes insurance, so you don’t have to pay extra for that. And it comes with a guarantee that’s valid for three years as opposed to the usual one. What do you think?
C: Hm. Maybe...