Add support for CD writer hardware

Packages describing “cdr” as local USE flag

Package “cdr” Flag Description
mate-extra/caja-extensions Add an extension to burn files to cds using app-cdr/brasero.
media-plugins/mythplugins Allows MythMusic to burn CD-Rs
media-gfx/inkscape Enable support for CorelDRAW files via media-libs/libcdr

All packages providing a “cdr” USE flag (8)