>>77
In the midst of all this trolling, someone just released some Theora BDRips of some anime at a very low bitrate, ruining the quality of the BD.
>>76
On a serious note, Vorbis is superior to AAC(which is superior to Mp3) for 2 channel encoding. It kind of sucks for 5.1 and higher. When I say superior, I mean that it requires less bitrate for equivalent quality.
Theora requires about 2-3 times more bitrate to achieve equivalent quality to H.264, that makes it undesirable for those that just want good compression or quality. Instead of needing 20GB for a BD, you need 40GB now. Now that is a difference!
Ogg is a container, mostly used for packing Vorbis audio these days, but a hacked version of it was used to allow multitrack encodes in the past(dual/triple/.. audio, subs, ...), however it was a hack on top of MS' VfW and not a particularily good one at that. MKV has almost fully replaced it for most things except audio, in which case you tend to see things like Vorbis in Ogg in MKV or FLAC in Ogg in MKV.