CD/DVD do not contain Release.gpg files - secure apt complains

[Jens Seidel <jensseidel@users.sf.net>]

Hi,

I noticed that recent DVD images do not contain Release.gpg files so
that APT warns all time about insecure packages.

An installation using the Debian Installer is probably not affected
because of a TrustCDROM setting in /etc/apt/apt.conf.d/00trustcdrom but
I use a loop-back mounted copy of a DVD set on my hard disk.

Please CC: me.

Jens