Eli Zaretskii <eliz@gnu.org> writes:

>> Would adding support for (GNA) unrar be enough for you?
>> If so, I'll gladly add it.
>
> Sure, please do, and thanks.

After having a second look at the GNA unrar download page at
http://download.gna.org/unrar/ it appears that there hasn't been any
release since the 0.0.1 release in 2004, so I'm a lot less sure that
adding support for it in arc-mode would make sense.

libarchive seems to support extracting and listing rar files though, so
I might go with that instead.

Nico