1. DVD LANG
No currently there is not option for select dvd languge (but there will be) ... dvd options and encoding is realy basic now \:
I want to be able to convert any video to play on player so i'm aimed on it not adding features like selecting dvd language.
2. FF/RW
well FF/RW will probably work if you convert same video as you did with previous version, but don't work with video from your dvd. And probably will work with another converterd dvd. And problably after you will even find dvd that will not work at all after conversion.
M6 is realy pitchi in this. And i don't know why! If you know, tell me please!
3. widescreen
open m6.ini and change mode to 0 ... see
http://rori.parba.cz/videoconverter/ and you should get idea how to do it ... maybe.
4. M6 ultra and M6 quality
... are my own presets, you can create some too i don't see any point in bundling it in program installer.