Many companies faced with a need to archive data (usually email) due to regulatory requirements, eDiscovery responsibilities, or business requirements, look for solutions based on capabilities, cost, vendor reputation, security, and regulatory requirements.
In the past, companies in need of archiving solutions purchased one of the many on premise or cloud-based solutions that met their needs. However, many of these archiving solutions actually converted the data so as to enable more efficient storage, indexing, and search. The problem with data conversion is the data can be corrupted or metadata changed or lost nullifying its “golden copy” or copy of record status. In most cases, this is not really a problem… unless you are anticipating or are in fact, involved in litigation.