Error Code:
QuickTimeAudio-InvalidSampleRateNonOverrideable
Error Message:
MOV audio sample rate (44100) is not iTunes compliant.
Definition:
The sample rate of the audio within the MOV file is not a rate of at least 48KHz as specified in the iTunes Audio and Video Asset Guide (v5.2) and is therefore non-compliant. The error message will communicate the sample rate found within the MOV file.
Solution:
You will need to re-encode, taking care that you correctly configure your transcoder to encode the audio at 48KHz.