2 ms·

You can get business-card shaped CDs. Mentioned here: https://wikipedia.org/wiki/Bootable_business_card https://wikipedia.org/wiki/Bootable_business_card

• toyg 3y ago
  But then you need a CD reader, which is kinda hard to get these days.
  • robocat 3y ago
    USB CD/DVD drives are cheap and available.