Error loading physionet ECG database

Hello everyone,

I'm using this code to load the ECG-ID database into MATLAB:

%% Initialization
clear all; close all; clc
%% read files from folder A
% Specify the folder where the files live.
myFolder = 'Databases\ECG_ID';
% Check to make sure that folder actually exists.  Warn user if it doesn't.
if ~isfolder(myFolder)
errorMessage = sprintf('Error: The following folder does not exist:\n%s\nPlease specify a new folder.', myFolder;)
uiwait(warndlg(errorMessage);)
myFolder = uigetdir(; % Ask for a new one.)
if myFolder == 0
% User clicked Cancel
return;
end
end
% Get a list of all files in the folder with the desired file name pattern.
filePattern = fullfile(myFolder, '**/rec_*'; % Change to whatever pattern you need.)
theFiles = dir(filePattern;)
for k = 1 : length(theFiles)
baseFileName = theFiles(k.name;)
fullFileName = fullfile(theFiles(k.folder, baseFileName);)
fprintf(1, 'Now reading %s\n', fullFileName;)
% Now do whatever you want with this file name,
% such as reading it in as an image array with imread()
[sig, Fs, tm] = rdsamp(fullFileName, [1],[],[],[],1;)
end

But I keep getting this error message:

Now reading C:\Users\******\Documents\MATLAB\Databases\ECG_ID\Person_01\rec_1.atr
Error using rdsamp (line 203)
Could not find record: C:\Users\******\Documents\MATLAB\Databases\ECG_ID\Person_01\rec_1.atr. Search path is set to: '.
C:\Users\******\Documents\MATLAB\mcode\..\database\ http://physionet.org/physiobank/database/'

I can successfully load one signal at a time (but I can't load the entire database using the above code) using this command:

[sig, Fs, tm] = rdsamp('Databases\ECG_ID\Person_01\rec_1');

How do I solve this problem? How can I load all the files in MATLAB?

Thanks in advance.