I have encoded a svcd but the bass is not there at all. I use SmartRipper to rip the dvd then use dvd2avi to get the d2v and the wave file, then use tmpgenc to encode the files. I have the audio set up as: Channel Format: Auto; Dolby Digital: Decode; Dolby Surrond Downmix; MPEG Audio Demux. I really would like to add bass into my files.