But as music videos proved that they were no passing fad and that they had an enormous impact on record sales, they rapidly became increasingly sophisticated, artistically and technically.
ولكن عندما تبيَّن انها ليست صرعة عابرة وأن لها تأثيرا هائلا في مبيعات الاسطوانات ،‏ تطوَّرت بسرعة فنيا وتقنيا .‏