RMS difference values for all 10 patients' original versus re-digitized files when both the original and re-digitized files were collected on the same model of Cardiax ADC.

RMS: Root mean square, with RMS difference values expressed in analog to digital converter (ADC) counts, and with 1 ADC count = 2.44 µV. Channel: the equivalent of leads I, II and the precordial electrodes as referenced to the right arm electrode (CR1-CR6). H and D: Healthy and Diseased patients, respectively. LBBB and RBBB: left and right bundle branch block (BBB), respectively.