Retrive audio properties of MP4 files

I am working on a site in which there are a lot of different format audio files such as .mp3,.wav, .mp4 HD music files etc..

Now all these files will be uploaded to the server I need to write a cron job so that It gets all the songs information such as the filename,path,artist,genre playing time etc and put it in a database table.

I tried getid3 package, but this one cannot extract mp4 information.

Its a bit urgent please some one give me some tips on how to get the audio information extracted from mp4 and HD music files. or does any one know any package that can read mp4 information.

Thanks in advance...