There is no way how .cidb files (iTunes CD information file) could somehow be converted to actual audio, for example the .aac files (Advanced audio coding), simply because .cidb files contain no audio data. You will need the actual audio file for audio conversion, cidb to aac conversion is simply not possible.
Updated: November 28, 2017
This conversion entry was verified by us and conversion was flagged as wrong or not possible.
Usually this happens when the conversion would try to convert different types of data between each other, such as audio to image, or it is not possible because incompatibility between programs, caused by closed file formats, very limited support etc.
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