I'd also like to know. I've tried Ulead Videostudio 8, with the Dolby Digital plugin, but it doesn't copy the LFE channel, so the output is lacking in bass. It just seems to copy the front left and right channels. I sent them the suggestion to have the option of mixing the LFE in with the front channels, but they might just wait until next year, or whenever it'll be that Videostudio 9 comes out.