Before buying: songs playing at a slower speed?

@arranger wrote:

Mine was a 2.01.17 purchased just before Christmas at Radio Shack.

 

My fuze was replaced by a new Sony NWZ-e438f that reproduces tracks precisely on pitch and at identical speed to the same tracks played on all of my other devices.

Ladies and Gentlemen, I think we have the First step in the solution to the problem. The 2 people who have most activly pursued a solution to this issue, both have V2 fuzes. Is this the case for others who have this issue? My Guess is that it is. Does anybody know a way to tell what batch the fuzes are from? I wonder if they were all made at the same time?