A while back I bookmarked How to Revive The Levelator in El Capitan on TidBITS and followed the instructions to get this essential piece of podcasting software to work again after updating my mac to El Capitan.
Ever wanted wanted to use your iPod to replace a computer as a constant replay device, or just to have it play a looping video? If so, you will have found that none of the existing video apps will play a looping video. But, if you have been to an Apple store you will have seen iPods playing a looping video. So how do you do that....
Warning, before you do this, back up your iPod as you will be changing settings that will change your syncing settings. This has been tried and works on an iPod Classic.
1) In iTunes Summary window for your iPod, tick enable disk use on your iPod.
2) From finder create a folder on your iPod called "Demo Mode"
3) in iTunes name a video "Demo" and sync it to your movies section.
4) Unmount your iPod in iTunes, but keep it plugged in so its is powered... and wait for two minutes.... if all goes according to plan you should then have a looping video.
This mode will only work when your iPod has external power either through the dock connector or a powered dock, and kicks in after two minutes of inactivity.
To disable this mode, remove that "Demo Mode" folder you created at 2 above...