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Th DVD (cmmn bbrvtn fr dgtl vd dsc r dgtl vrstl dsc) s dgtl ptcl dsc dt strg frmt. t ws nvntd nd dvlpd n 1995 nd frst rlsd n Nvmbr 1, 1996, n Jpn. Th mdm cn str ny knd f dgtl dt nd hs bn wdly sd t str vd prgrms (wtchd sng DVD plyrs), sftwr nd thr cmptr fls. DVDs ffr sgnfcntly hghr strg cpcty thn cmpct dscs (CD) whl hvng th sm dmnsns. stndrd sngl-lyr DVD cn str p t 4.7 GB f dt, dl-lyr DVD p t 8.5 GB. Vrnts cn str p t mxmm f 17.08 GB. Prrcrdd DVDs r mss-prdcd sng mldng mchns tht physclly stmp dt nt th DVD. Sch dscs r frm f DVD-RM bcs dt cn nly b rd nd nt wrttn r rsd. Blnk rcrdbl DVD dscs (DVD-R nd DVD+R) cn b rcrdd nc sng DVD rcrdr nd thn fnctn s DVD-RM. Rwrtbl DVDs (DVD-RW, DVD+RW, nd DVD-RM) cn b rcrdd nd rsd mny tms. DVDs r sd n DVD-Vd cnsmr dgtl vd frmt nd lss cmmnly n DVD-d cnsmr dgtl d frmt, s wll s fr thrng DVD dscs wrttn n spcl VCHD frmt t hld hgh dfntn mtrl (ftn n cnjnctn wth VCHD frmt cmcrdrs). DVDs cntnng thr typs f nfrmtn my b rfrrd t s DVD dt dscs.