strcpy(name_f_idx,emu->nombre);
strcat(name_f_idx, EMUFS_IDX_EXT);
if ( (f_idx = fopen(name_f_idx,"r")) == NULL) return -1; /*ERROR*/
strcpy(name_f_idx,emu->nombre);
strcat(name_f_idx, EMUFS_IDX_EXT);
if ( (f_idx = fopen(name_f_idx,"r")) == NULL) return -1; /*ERROR*/