Has anyone checked if the difference they are hearing has anything to do with firmware vision? When I went from v01.01.11A to v01.01.22A on my 8GB Fuze I thought there was a difference in sound quality, volume and pitch but the more I used it with the new firmware the more I got use to it… I just got another 8GB Fuze with firmware v01.01.11A so when I have the time I will compare the two as best I can… I do have two Set’s of the same Sony ear buds too. That will help… I’ll post if I ever get the time to do the tests… I have to admit I did not read all the posts about this so someone may have already done this test already… I must say I still enjoy the Fuse in any case… All that music in one small case with so many options!! I love it! George