Is there a way to tell how old my fuzes are?

[goanimosh]

I guess that leaves me with 3 V1 and 2 V2.  I wonder what all the info on the back means (other then 4gb, 8gb, etc.)  I hope I get several more good years out of them.  It is a shame they stopped making such a good product.  Not many mp3 players work so well and can use a 32gb card for such a resonable price.