Please use this for English study. Case and disc only (no booklet) This is a North American version, so the region code is "1". ※ Region Code DVDs have playback restrictions set for each region. Japan is "Region 2", and America is "Region 1", etc. Discs from different regions cannot be played on standard players. Please check the region code of your DVD player before purchasing. Returns due to differences in region codes will not be accepted.