With Ogg DirectShow Filters you can watch and if you want to, create, .ogm wrapped videos.

Using the OGM instead of the common AVI wrapper has several advantages, namely the fact that the audio and video should always, under virtually any circumstances, maintain synch.

The package contains the actual DirectShow filters as well as various tools for handling .ogm streams, such as Ogg Splitter and Ogg Multiplexer.