Some 320 kbps files are themselves reconverted files Yes I've come across those too, more-so than I like . Highly disappointing compared to the 'original' 128 kbps conversion files. This reconverting practice needs to be stamped out of the network. Increasing mp3 from 128 to 320 does not increase quality as you obviously know. They set to max quality but result is less quality.

(There may also be particular codecs used for conversion which also affect quality! There are definitely some poor quality codecs out there but so many options for windows users they simply don't realise.)

For you to be reconverting files sounds of desperation to save Hard Disk space. sighs. If you do reconvert, please don't share those ones. (would you want to download an audio file that had been re-converted 3-10 times lol ? JPeg -1 or worse! )

Quotes are easy to muck up lol np