With Nero recode2 has anyone tried the multichannel Dolby digital 5.1 upgrade? I was hoping that with the latest downloads I could would have this option that are in the Nero Ultra update. But I don't. All the DVDs that I burn are with AC3 5.1 Checked. The sound when playing the DVDs sound like 5.1 Dolby. Will adding this plug in make a big difference with the sound?