This download consists of data only: it provides a test data set for the task of Japanese character conversion for text input. The data set consists of: (1) reference files, which consist of Japanese sentences that are randomly extracted from news articles (no more than one sentence has been extracted per news article); (2) reading files, which consist of corresponding kana readings for the sentences in the reference files; (3) n-best files, which contain 100-best conversion candidates for each sentence in the reading files. More detailed information about the corpus is found in the technical report, Microsoft Research IME Corpus, MSR-TR-2005-168.