Something odd here. I can't tell why you wrote that as I must have a dozen players over the years and never found such a thing or thought that.
Ipod is great but I can't stand Itunes. So that is not going to happen.
The Mp3 players that I have tried though so far have lacked the output strength causing me to have to max the house system leading to distortion and stress on the house system.
How is the quality of output and volume of output measured on MP3 players?
How can I compare them?