[CentOS] aac and tag editing

As my iphone will not play nice with open source audio formats I'm 
forced to use aac.
I have faac and produce .aac files that seems to play fine with Amarok 
but no tags.
I usually use Easytag (from rpmforge) to deal with metadata on audio 
files, but despite the advertised ability to do mp4/aac it does not even 
show the files......
Anyone have any experience or pointers as to how I get the metadata 
sorted on these files?
TIA
Rob
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