Is there a way to play unauthorized (Mpeg-4 Audio file Protected) itunes music or unlock it without having to log into itunes to retrieve the DRM key?
I very much doubt that. Years ago there was an app that would strip the DRM off the file without playing it. If you can play, you have the license. They were quickly sued out of existance. Every month some one asks about that app. The very best you can do is buy a DRM remover that will remove the DRM while you play the audio. Then you remove it as soon as yo get it. It suprises me how many person claim to have such an app but don't use it until something happens and they lost the ability to play. Then they cry. These DRM removers will also be a thing of the past. A law was passed this year in the US, other countries will follow. You can still buy them in the US but the time is probably limited. I just re-read your post and noticed you are talking about movies but the concept is exactly the same.
