I'm sure that I did something wrong, but this file:

that I converted using Handbrake 0.9.3 using the iPod preset won't play on my iPod Nano 4g or my iPod Classic 160. No error was given by iTunes when adding to the library or when syncing to either iPod. No error message is given by either iPod. They try to play each file for a second or two, then give up and return to the previous menu.

What did I do wrong?