Video CD hom (tseem paub VCD) yog tsim nyob rau hauv 1993, ob peb xyoos ua ntej DVD-video (dab tsi peb tam sim no hu rau DVD). VCD yeej tsis ntes tau nyob rau hauv txoj kev uas DVD hom ntawv tau ua, txawm li ntawd los. Txawm tias ob qho yeeb yaj duab ua si video, muaj kev sib txawv ntawm lawv.
Tshawb nrhiav qhov txawv
Npaj txhij, peb yuav tau txais ib qhov chaw nyob ntawm no. VCD digital video yog siv cov MPEG-1 codec. MPEG-1 video tau ua si rov qab rau hauv cov DVD player lossis DVD playback software peev ntawm decompressing MPEG-1 video. VCDs tuaj yeem hais tau hais txog qhov zoo ntawm VHS videotape, thiab tuav tau li ib teev ntawm cov yeeb yaj duab.
DVD cov yees duab yog siv cov MPEG-2 codec nias cim. MPEG-2 video compression yog piv rau DVD zoo video thiab tuaj yeem ua si nyob rau hauv tag nrho DVD players lossis DVD playback software. DVDs yuav tuav ob lub sij hawm ntawm cov yeeb yaj duab (los yog tshaj, saib tsab xov xwm, DVD Npaum, DVD-5, DVD-10, DVD-9, DVD-18 thiab Ob Chav Daj DVD) rau ntau tshaj info). Yog tias tsis muaj kev tshaj lij, MPEG-2 compression ntau dua compression dua MPEG-1 thiab ua rau cov duab zoo dua qub rau DVDs li Video CDs.
Cov kab hauv qab ntawm DVDs thiab VCDs yog cov DVDs tuav tau tsawg kawg yog ob npaug ntawm cov yees duab digital ua VCDs, thiab yog cov ntaub ntawv pov thawj zoo dua. VCDs yog qhov zoo thaum koj xav ua kom ntau cov ntawv luam ntawm ib qho yeeb yaj kiab los sib qhia, thiab zoo tsis yog qhov teeb meem. Zuag qhia tag nrho, koj yuav xav nrog cov DVDs rau feem ntau ntawm koj cov video kaw.
Koj Puas Tseem Siv VCD?
Feem ntau hais lus, nws tsis tsim nyog siv VCD hom. Tsis tsuas yog qhov ntev ntawm daim video luv luv ntawm VCD dua lwm cov qauv, qhov kev daws teeb meem yog nyob deb ntawm qhov peb txhua tus tau ua rau. Tshaj deb li cas hauv qab no? High-txhais kev daws teeb meem yog tshaj 2 lab pixels where VCD yog nyob rau hauv 85,000 pixels.
Ua tsaug rau kev sib txuas ceev ceev thiab qhov sib txuas ntawm cov chaw sib koom hauv online (ie Youtube los yog Vimeo ntawm lwm tus), cov neeg tsis tuaj yeem hlawv cov VCDs los yog DVD ntau dhau lawm. Nws yog qhov yooj yim dua ua rau koj cov video thiab muab nws tso rau ib qho chaw sib koom.