[FIG(quote)[
[FIGCAPTION[
[1] [CITE@en[sources.list(5) — apt — Debian jessie — Debian Manpages]]
( ([TIME[2017-05-18 18:49:30 +09:00]]))
<https://manpages.debian.org/jessie/apt/sources.list.5.en.html#URI_SPECIFICATION>
]FIGCAPTION]

> The cdrom scheme allows APT to use a local CD-ROM drive with media swapping.

]FIG]