Don't forget that the early encoders were pretty bad. It seems conceivable that a old encoders might have produced 320 kbit mp3s that were distinguishable from

Don't forget that the early encoders were pretty bad. It seems conceivable that a old encoders might have produced 320 kbit mp3s that were distinguishable from CDs in blind tests. Perhaps tempodox gave up on mp3s before they got good?