Note that there is the following exception to dmca circumvention provision:

"Computer programs and video games distributed in formats that have become obsolete and that require the original media or hardware as a condition of access, when circumvention is accomplished for the purpose of preservation or archival reproduction of published digital works by a library or archive. A format shall be considered obsolete if the machine or system necessary to render perceptible a work stored in that format is no longer manufactured or is no longer reasonably available in the commercial marketplace."

DMCA is so weird. Anything can be a circumvention device. XOR. Harsh wording with an if then.