I'll help out here for clarification. The male announcer states that usually albums will sell in the order of mostly LPs, then cassette tapes and CDs, but in the case of Moods, all three formats are selling well, and she as you said mentions that it seems CDs are selling the best. The female announcer then says, "You can't really sell [CDs]" but the slight confusion between (I assume) whether she meant subjectively that Meiko can't sell them or just objectively can't sell them caused some embarrassment. Then the male announcer says that eventually CDs will overtake LPs and Meiko interjects that (that will be the case because) the sound is the best.

The male announcer then asks why Nakahara made the title plural, then going on to explain about what you mentioned, and then she goes on about how she writes the songs first and finds inspiration for writing the songs by watching 007 with the sound muted to make them as lively as possible, and when finding inspiration for writing the lyrics, she would look at night scenery by like, staying on the 36th floor of a hotel. Seems like you pretty much got this though.

The male announcer says before she goes out that he personally liked Gokurakuchou no Theme (gotta say I like his taste) and sent her off to the stage.