I'm looking for a DVD software player that enables the user to:
1. switch the audio language very easily and quickly, for example from Japanese to English or vice versa, hopefully just by one shortcut key like ctrl+s.

2. also switch the subtitle language very easily and quickly just by one shortcut key.

I'm very appreciated if you know ones which can select the first, second, third and so on subtitles or audio languages included in a DVD just by one short cut key like pressing that key initiates Japanese dub (or subtitle), pressing this key initiates English dub (or subtitle).

I need this when I watch videos in English and have difficulty understanding what they are saying.

To be able to select languages that easy would get rid of my frustration.

I'm sorry if some parts are hard to understand.