USB hard drive - microcontroller

[Halo1]

I need some guidlines on this subject.

I plan to build a mp3 player which will use an usb hard drive as a memory. Have looked around but doesn't found any information on how to begin (Theres are a lot of information about usb but not on how to communicate with a hard drive).
So if you anyone have any clues or maybe you have already buld one I would be glad.
I will try to use the maxtor oneTouch disk (it's has only USB interface).

Thanks

 

[mixos1]

Take a look here:

USB to EIDE Converter
http://www.electronics-lab.com/forum/index.php?board=13;action=display;threadid=155;start=msg479#msg479