SD filesystem

I don't have too much experience working with the SD card on the wii, but I thought I had enough to get this to work. At the moment it wont find an existing file on the SD card. Here is my code:

int getLevels(){
	
	if(!fatInitDefault()){
		return 1;
	}
	Level levelinfo;
	
FILE *fp = fopen("SD:/gravitii.lvl","rb");
	
if(fp != NULL){
/*Some Code*/
} else return 1;
return 0;
}

I know that fat is initializing because when I comment out these lines:

//if(fp != NULL){
/*Some Code*/
//} else return 1;

The function returns a 0, If they are present then fp is NULL and the code quits. Also I have double checked that the file exists and that a SD in not in the locked position
Thank you

EDIT: Running this code also fails:

DIR_ITER *root = diropen("SD:/");
        if (root)
        {
                dirclose(root);
                return true;
        }
        return false;

Edited 1 time(s). Last edit at 04/22/2010 01:35AM by g_man.

try lowercase sd

Thanks, I hate typos