We use excel.

For our record keeping, we have a file cabinet per item.
Meaning:

File Cabinet A:
2257 by DVD

File Cabinet B:
2257 by Stage Name

File Cabinet C:
2257 by Real Name (This is the master cabinet).

In each file cabinet, there is a pull out drawer. There is a "packet" that sits in the drawer. It gives a complete run-down of what film each model was in, when the DVD was produced, and the dates that model filmed for us.