China Blue High-definition Disc China Blue High-definition Disc China Blue High-Definition (CBHD; ; alternatively "China High Definition DVD") is a high definition optical disc format announced in September 2007 by the Optical Memory National Engineering Research Center (OMNERC) of Tsinghua University in China. The format is a derivative of the HD DVD, a medium created by the DVD Forum designed to succeed regular DVDs. Although HD DVD was scrapped as a result of losing the format war to Blu-ray, CBHDs continued to be produced and marketed, though only in China. Originally called CH-DVD, CBHD is a joint venture between the DVD Forum and OMNERC.
Names given to the Spanish language used was called "castellano". Thus, some Latin American countries formerly under Spanish rule have retained the custom of calling it "castellano", while others eventually switched to calling it "español", with many different factors influencing the final choice. In English, the term "Spanish" relates both to the language and to the nation. The noun used for a person from Spain is "Spaniard", with the collective noun "the Spanish". The term "Castilian" is much less widespread amongst English speakers than the term "Spanish". Two main hypotheses have been proposed for the origin of the word "español": one based on dissimilation in Old