Dolby and DTS are digital audio formats that use coding to compress the information so that it fits all the surround-sound audio information digitally onto a DVD or Blu-ray Disc.
Dolby na DTS bụ usoro ntanetị dijitalụ nke na-eji nzuzo nke na-eme ka ozi ahụ dị ike iji mee ka mgbasa ozi ọdịyo gburugburu ebe obibi na DVD ma ọ bụ Blu-ray diski.