TAKING WAV FILES FROM ORIGINAL XBOX DASHBOARD

I have done a fair bit of reading on how to take the files from the original xbox dash board but have not found what im looking for. I added alot of .wav files to my ORIGINAL XBOX DASHBOARD before i modded it and now cant find the files when i network my PC and XBOX. Yes they are still there as i can play them and see them only through the ORIGINAL DASHBOARD. I searched everywhere in E and F drives but have found nothing. IS THERE A WAY OF TAKING AND PUTTING THESE FILES FROM THE XBOX DASHBOARD AND BACKING THEM UP ON THE PC?? I found all my MP3 i added to the F drive?? ANy help is greatly appreciated as its driving me nuts!