The Creative Zen 8gb from 2008 is my first mp3-player*.
I'm still using it daily and when I'm writing test scenarios it can be upto 7 hours a day.
Sometimes the screen stays white, but if you just restart it (not reset), the screen comes back and on rare occassions the colors of the UI are a shade lighter (again, just a restart to get the darker shade back).
I bought last year an iPod Nano 16gb 6th gen to replace it. Not because the Zen was defect, but Creative software doesn't support OSX. This meant that I couldn't put new songs on it.
I had tried the XNJB software, but I couldn't get it installed on OSX 10.6.x.
Afterwards I got it to work on OSX 10.8.3
So now the iPad Nano is banned to my car radio and I'm using again my Zen
*Before the Zen, it was the original Walkman and Discman and then a lot of years nothing.