Exif timestamp vs file timestamp. Perhaps there's something similar to nautilus-rename-exif-date that does choose audio Exif timestamps automatically, instead of taking the file timestamps.And if this is the case, what would be a solution to correct this highly undesired for me behaviour? Though I should admit your suggestion is slightly cryptic to my humble knowledge. What are 'exif' or 'nautilus-rename-exif-date'?
http://en.wikipedia.org/wiki/Exchangeable_image_file_format http://en.wikipedia.org/wiki/Exchangeable_image_file_format#Exif_audio_files http://lmgtfy.com/?q=nautilus-rename-exif-date