Will the quality drop?

The conversion keeps a quality you will hardly tell apart. DVD video is about 720×480 to begin with, so it cannot get sharper.

Are DVD subtitles included?

Switchable DVD subtitles are not carried over. If you need subtitles, Stream can make a subtitle file by transcribing.

No. Copy protection is not removed. It is for discs you recorded yourself.

ORIHAKO STREAM · GUIDE

Want to watch a DVD video on your phone, share it or keep a copy? Drop the VOB file and save it as MP4.

Drop a VOB file (such as VTS_01_1.VOB in the DVD’s VIDEO_TS folder) into Stream’s Trim view.
Press “Convert and open”. Progress and time left are shown.
Under “Output format”, choose MP4. To keep only part of it, set the start and end and press “Add this range”.
Press “Create”, then “Save to device”.

Will the quality drop?: The conversion keeps a quality you will hardly tell apart. DVD video is about 720×480 to begin with, so it cannot get sharper.
Are DVD subtitles included?: Switchable DVD subtitles are not carried over. If you need subtitles, Stream can make a subtitle file by transcribing.
Can I convert commercial DVDs?: No. Copy protection is not removed. It is for discs you recorded yourself.