Usually with the OLD GOLD BOLD Pilots & airlines these days Airlines governed by State rules are mandatory-ly required to maintain Flight Op's Quality.Hence the DFDR Capability being much more than CVR almost upto a day or two.The data is physically or over the air using VHF downloaded at first suitable designated location.
Usually Ops/Maintenance bases are equipped for the same.
100% DFDR monitoring is the norm at least here in the subcontinent.
