With Captain bluepichu and First Mates f0xtr0t and ubuntor

Long ago, I found a chest with some most curious booty: two pristine shiny disks, and a piece of parchment promisin’ me wealth and riches if I could reveal their secrets. Now, many years later, I’ve finally found a machine capable o’ gettin’ their data -- but the scupperin’ thing jammed with one o’ me disks inside! Worse yet, the machine only be half o’ what I need: it acts as a “player” and needs some other device to act as “host” to communicate with it! Can ye help me out, bucko? (Note: PPP does not condone media piracy)

Disk A (200 points): The CSS_AUTHENTICATION_KEY, CSS_PLAYER_KEY_ID, and CSS_PLAYER_KEY_DATA are not given, nor is the keys file used when making the two disks. If you want to test locally, make your own disks and set your own keys. CSS_AUTHENTICATION_KEY is fixed and will not change. The flag is case insensitive. nc the-other-css.chal.pwni.ng 1996

Disk B (250 points): If your flag gets rejected, try adding an underscore between the first and second parts of the flag.