I use mkv2vob to convert *.mkv file to *.avi file, transcoding dts sound. That's all. Been doing it several years, several prgm versions, hundreds of movies. No problems. Now I get 30mb AVI files, not 4.5gb as exxpected. Uninstalled and reinstalled, new prgm downloads, reboots, reboots. Last 25 or so conversions all the same. The output AVI file is very high-def, sound is good-- file just has the opening credits. Been over the configs, etc. No clue. I'm highly experienced, but not a techie. Sure could use some help. Thanks, guys!