problem with sd card on fpga

Hello ,i use DE1 board of FPGA (CYCLONE 2) i want to realize an audio project which i want to recorder my voice with the microphone in the sd card and then i want to listen to the voice which is recorder in the sd card

please any help

i have a proposition that allows to speack in the mic and in the same time i listen to my self with the headphone . this part works very well but i want to recorder the voice in the sd card if i press to key1 and then if i press key2 i listen to the voice from the sd card

ANY HELP

this is my code vhdl i want some who help me to verify with me this code

http://devbisme.webfactional.com/content/accessing-xula2-microsd-card

https://github.com/xesscorp/xula/blob/master/fpga/xula_lib/sdcard.vhd