Not my cup of tea but might be of use to someone. Next best price is £8.19 at Base.com
Daniel (Ralph Macchio) arrives in Los Angeles from the East Coast and faces the difficult task of making new friends. However, he becomes the object of bullying by the Cobras, a menacing gang of karate students, when he strikes up a relationship with Ali (Elisabeth Shue), the Cobra leader's ex-girlfriend. Eager to fight back and impress his new girlfriend, but afraid to confront the dangerous gang, Daniel asks his handyman Miyagi (Noriyuki "Pat" Morita), whom he learns is a master of the martial arts, to teach him karate. Miyagi teaches Daniel that karate is a mastery over the self - mind and body - and that fighting is always the last answer to a problem. Under Miyagi's guidance, Daniel develops not only physical skills but also the faith and self-confidence to compete despite tremendous odds as he encounters the fight of his life in the exciting finale to this entertaining film.
Good review of the blu ray transferhttp://goodfilmguide.co.uk/the-karate-kid-1984-blu-ray-review/