I have very limited experience with these files. If you want to convert the ogm files to DVD Format, I know that DVD Flick will accept that container. To get the subtitles into DVD flick, I think you have to first demux them from the ogm file using the likes of VirtualDubMod or OgmDemuxer. you should get a .srt file which are the subtitles. http://www.videohelp.com/tools/OGMDemuxer After loading the ogm file in DVD Flick, click 'Edit Title' > 'Subtitle Tracks' > 'Add' and load the .srt file.