Вы услы­ши­те ин­тер­вью два­жды. Вы­бе­ри­те пра­виль­ный ответ 1, 2 или 3.

Which of the following is NOT mentioned by Stan as an outcome of the experiments?

1)  New types of DVDs.

2)  New design of concert halls.

3)  New methods of music recording.