What is the difference between dolby home theater surround sound and jbl?

Surround sound comes only in the format of Dolby Digital or the DTS. Movies in DVD or Blu Ray disc are encoded with the Dolby or DTS and some with both. You will need a receiver or a home theater in a box the decode the surround sound. JBL is a brand of speakers, and one of the oldest manufacture and well know around the world. They provide speakers for most theaters and recording studio's beside to professionals. Hope this will help you out.