I Procoder you should have the option of tweaking up the bit rate. I agree that this is the best encoder at this end of the market.
Make sure you use “MASTERING Quality” 8100kbs at CBR with a PCM soundtrack. On a single DVD-R you will have a limit of about 64 minutes (or less).
If you need more time on the disc, go to AC3 for audio, and drop the bitrate to something less than 8100, like 7300kbs.
Keep in mind top quality limits your running time to just over an hour imo.