Abstract: A method for conducting a worldwide, inexpensive and accessible ECG Holter data scanning, processing, and analyzing system by way of obtaining a Holter recording in a conventional manner, then downloading that analog or digital data to a PC, then going online through the PC by way of an ISP, such as DSL, capable of large data transfer, through a USB to tie into a URL web address for a Central Computing Facility with advanced and multifaceted data analysis capability available for short term licensed use, then downloading the Holter data to that URL, then scanning and analyzing the downloaded data at that Central Facility in real time from the remote site, then choosing which alternative analysis sub programs need be run on the stored data, and finally returning the selected Holter analysis to the remote site and tagging, storing, and archiving the raw ECG data and the patient demographics, along with results of the various analyses performed on that data in the Central Facility archives for future access.