It's the samething, the only differences is that you'll be having to read the subtitles. The english dubbed DVD is already out if you'd rather have it in english.
The Japanese DVDs are not the same as the US DVDs. They have the same series and episodes on it, but they do not have the subbed or dubbed options. They are also meant for region 2, and most US DVD players do not see region 2, as we are part of region 1.
Budget Zen: When you see something so stupid that your mind goes blank rather than try to rationalize it.
^^^correct, there is a high possibility that the Japanese DVDs will not play on your DVD player/Playstation/XBOX/Computer or whatever it is you use to play DVDs on. I reccomend getting the english DVDs...if I'm not mistaken they too have Japanese audio along with English audio.