Here is a link to an article on Xbox Support about the error code(s) when streaming/downloading video content from Xbox Live:
support.xbox.com/.../video-playback-status-codes
The details for the error code you're getting are:
69 C00D36CB A corrupted Advanced Audio Codec (AAC) audio stream exists in an MP4 file. This content can’t be played.
Have you tried deleting the affected video from your Xbox hard drive or memory unit and re-downloaded it?