I want to know the answer to the following question:
Which audio player was released in 1997?
All the background I'm provided with is that "In 1998, the first portable solid state digital audio player MPMan, developed by SaeHan Information Systems which is headquartered in Seoul, South Korea, was released and the Rio PMP300 was sold afterwards in 1998, despite legal suppression efforts by the RIAA.". Is that enough to answer the question?
Answer: no