WRT subtitles, it depends on how fluent your Klingon is... :bigsmile:
In some movies you'll have foreigners, legal or illegal aliens, talk in their mother's tongue. Failing to rip the (forced) subtitle leaves a lot of guesswork or outright confusion for the viewer.
I don't know what you mean with 72, 58 or 60 for quality. I leave the default size and up to now I always got a perfectly fitting 4.36GB project from DVD2One.
If you have problems at the end of a disk, it's most definately your burner or bad media or a combination of that. I'd suggest to slow down your burner back to normal for testing.
Depending on the length of the credits the saved space can be substantial.
You can get ChopperXP at http://www.digital-miner.com/ to cut them off the last .VOB before encoding with DVD2One.
Work with a copy of the last .VOB and check ChopperXP's results. Sometimes Chopper just doesn't cut it at the precise position.
Make sure you load the .IFO files into IfoEdit afterwards and make a "Get VTS Sectors" and re-save!
Your feature request to be able to cut a movie at an arbitrary position is a sound one. I suggest having an in- and out-point so you're able to also cut off at the beginning if the credits are at the start of the movie or they felt the need to annoy us with three different studio intro clips plus one for dolby, THX and dts before launching finally into the movie...
A nice preview would be nice sometime in the future, but entering the times by hand is also very acceptable to me.