In our airline the used PCMCIA cards and tape cassettes (yes there are still QAR cassettes about) are sent to the FDR department. Here every card/tape is downloaded into the computor where the events on the flight are run against a standard flight. Hundreds of parameters are compared from Body angle at lift off, Rate of ascent, In the box at 500ft on approach, AOA at landing, etc etc. If any parameter is outside certain parameters then it is recorded into a data bank. This is monitored by Flight Safety who can see trends developing, like high G force on landing roll at a particular airport and then see why. Really bad excursions are communicated to the pilots union for discussion, but basically the system is nameless. It is a Quality program for operations.
The system also keeps track of Cat3 landings to keep the system certified, amongst other things.
This has been going on since the late 60s.
The tapes are changed every night (because they are not long enough), but the PCMCIA cards about every third night.