The syllable ya at the end of the mantra denotes an offering. Thus the mantra Om Namah Sivaya actually means I offer to Siva a respectful invocation of His Name, and not merely I respectfully invoke His Name. Om Namah Shivaya mantra is sung by devotees in prayers and recited by yogis in meditation.
Short for Short for DVD-Recordable, a recordable DVD format similar to CD-R. A DVD-R can only record data once and then the data becomes permanent on the disc. The disc can not be recorded onto a second time. There also are two additional standards for DVD-R disks: DVD-RG for general use, and DVD-RA for authoring, which is used for mastering DVD video or data and is not typically available to the general public.
DVD+R; +RW; Â±R, Â±RW: There are two standards for recordable and rewritable DVDs: DVD-R and DVD+R, each with its equivalent RW variation, and each requiring its own type of drive and blank disc. The Â± sign, which you'll only find on drives, tells you that the drive can burn both - and +.