I have a 7th generation iPod classic 160gb that will reset itself randomly. (stop current operations, go to gray screen with apple logo, reboot itself to main menu, and then continue functioning normally)
When this issue first presented itself was while I attempted to "start genius" from a currently playing song. Although this did not occur every time I attempted to start a genius play-list off a song, it was frequent enough to be bothersome (1 in 2 or 3 attempts). My first reaction was to restore the ipod. This issue still persisted. I restored the ipod a second time for good measure, and the random reset still continued.
With the ipod still being under warranty, I went into the apple store. While I was explaining my issue to the tech, I started a random song from my library, and attempted to create a genius playlist from it. The ipod reset itself right in front of the tech, proving that this issue was real, against Murphy's law. He prompted if I'd restored the ipod, when I'd responded I had, he ran out of ideas. They generously swapped the ipod out immediately for the exact same model, in hopes that it was only a hardware issue. The tech's parting words were that if this second ipod continued to have this issue, then it is probably a corrupted music or genius file.
Upon getting the ipod home, toiling over a unique and meaningful name, and waiting through the long sync process, the new ipod exhibited the exact same behaviour. It actually resets itself more frequently and for less demanding button requests, like menu and next song as well as start genius.
I am beginning the troubleshooting process of deleting the genius file, and re-syncing the ipod. If this doesn't work I will attempt a wipe of the "iTunes Library" file and re-syncing the ipod. Short of selectively uploading my music, if neither of these options work, I will be at a loss as to what is causing the issue.
If anybody else has had similar experience and can provide any insight, that would be magnificent.
Thanks for your time and response.