content: Could an attacker infect CD-Rs/DVD-Rs or SD Cards with an exploit that occurs just by someone inserting them into a machine and said machine reading the files within? Note: I am not talking about booting/executing any file on the CD/DVD or SD Card, just reading them.....e.g. calculating a hash of a file found within Most of us know how dangerous a USB flash drive can be just from plugging them in, since they can have infected/malicious firmware, so it got me wondering about how safe CDs/DVDs & SD Cards are in comparison.