Recording Gu Long's novel into audio might involve copyright disputes because Gu Long's novel was a literary work, and the copyright was usually owned by the literary publishing house or the author himself. Therefore, recording Gu Long's novel as audio and selling or distributing it to others may violate the intellectual property rights of the copyright owner. If the recorded audio was not authorized, then the possibility of copyright disputes was even greater. In this case, you should comply with copyright law and obtain permission from the copyright owner before selling or distributing the audio content. Of course, if the recorded audio was legally obtained and followed the relevant provisions of the copyright law, it was unlikely to involve copyright disputes. However, to avoid potential risks, it is best not to sell or distribute audio content before obtaining permission from the copyright owner.