Add audio and video codec to iTunes I have a dream... One day my iTunes could read also MKV and all other codecs that are not natively supporter by it...

Is there a solution for make this reality? I have ffmpeg tool installed in my mac, and also lots of codecs.

Can I "install" one of this codec in my iTunes and make it read also MKV?
The answer to this question used to be "install Perian", and although that still works and provides many great codecs for Quicktime (and therefore iTunes), it's discontinued.

Give it a go, it's always worked really well for me.