Question: when did music cds come out in the us
[{'answer': '1982', 'provenance': [{'wikipedia_id': '6429', 'title': 'Compact disc', 'start_paragraph_id': 1, 'start_character': 122, 'end_paragraph_id': 1, 'end_character': 126, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6429', 'title': 'Compact disc', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 608, 'bleu_score': 0.8455013195954341, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3487190389283998663}, 'section': 'Section::::Abstract.'}]}]