I don't know the encoding of the audio file and all the other details. It may be best you keep going back to Sony if you can't supply these details.
Bob
Last year I bought an Sony MP3 which said "50 hrs battery life" but this was never the case.
I don't listen in 1 long session; it's always 10 min here, 15 min there........
I had to recharge the battery every 2 days to avoid it dying on me.
I contacted Sony to ask if their claim of "50 hrs battery life" was a joke but they said
nonono bring it back to the store to have it checked.
So last week I did (before warranty expired) and they gave me a new version NWZ-E464.
but guess what..........
it's already having the same problem !!
I always recharge the battery until the display says "FULL" ; is this wrong?
Can you explain this?
Thanks
Danny from Belgium

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