k3b has support for creating vcds but it currently is activated by the encode useflag, it should use the more appropriate vcd useflag.
well in my humble opinion this makes some sense, and seems to be pretty easy to implement it... we must change only RDEPEND like this: RDEPEND="${DEPEND} virtual/cdrtools >=app-cdr/cdrdao-1.1.7-r3 media-sound/normalize dvdr? ( app-cdr/dvd+rw-tools ) css? ( media-libs/libdvdcss ) encode? ( media-sound/lame media-sound/sox media-video/transcode ) vcd? (media-video/vcdimager )"
Applied in 0.12.5. Thanks.