audio cd ANS - is an example of popular uses of cd-rw and cd-r discs
blu-ray ANS - dvd format which has a higher capacity and better quality than standard dvds, especially for high definition audio and video
capacity ANS - the number of bytes or characters a storage medium can hold
cd-r ANS - cd recordable is an optical disc on which users can write once, but not erase, their own items,
such as text, graphics, and audio
cd-rw ANS - cd rewritable is an erasable multisession disc users can write on multiple times
concatentation ANS - is the operation of joining character strings end-to-end like snow-ball
disk cache ANS - sometimes called a buffer, consists of memory chips on a hard disk that stores frequently accessed data, instructions, and information
dvd-r ANS - competing dvd-rec0rdable worm format, on which users can write once but not erase their own items, including video, audio, photos, graphics, and text
dvd-rom ANS - dvd read only memory is a high capacity optical disc that users can read but not write on or erase
dvd-rw ANS - competing dvd-rewritable format that users can write on multiple times