VCD th\u01b0\u1eddng g\u1ecdi l\u00e0 \u0111\u0129a nh\u00ecn nh\u1ecf. N\u00f3 l\u00e0 lo\u1ea1i \u0111\u0129a quang ch\u1ec9 \u0111\u1ecdc \u0111\u01b0\u1eddng k\u00ednh 12cm d\u00f9ng \u0111\u1ec3 l\u01b0u tr\u1eef tin h\u00ecnh. \u0110\u01b0a n\u00f3 v\u00e0o \u1ed5 m\u00e1y t\u00ednh ho\u1eb7c m\u00e1y VCD th\u00ec s\u1ebd ph\u00e1t \u0111\u01b0\u1ee3c ch\u01b0\u01a1ng tr\u00ecnh h\u00ecnh \u1ea3nh. S\u1ed1 li\u1ec7u l\u01b0u tr\u1eef tr\u00ean VCD \u0111\u1ec1u \u0111\u00e3 \u0111\u01b0\u1ee3c n\u00e9n. B\u1edfi v\u1eady, khi ph\u00e1t h\u00ecnh ph\u1ea3i gi\u1ea3i n\u00e9n. Dung l\u01b0\u1ee3ng chu\u1ea9n c\u1ee7a m\u1ed9t \u0111\u0129a quang VCD l\u00e0 650 MB, nhi\u1ec1u nh\u1ea5t c\u00f3 th\u1ec3 ch\u1ee9a \u0111\u01b0\u1ee3c b\u1ed9 phim 74 ph\u00fat chi\u1ebfu. Khi n\u00f3 ph\u00e1t h\u00ecnh, hi\u1ec7u qu\u1ea3 ph\u00e2n bi\u1ec7t d\u00f2ng ngang c\u1ee7a h\u00ecnh \u1ea3nh tr\u00ean m\u00e0n h\u00ecnh l\u00e0 268 \u0111\u01b0\u1eddng. Sau khi VCD ra \u0111\u1eddi, do thi\u1ebfu bi\u1ec7n ph\u00e1p b\u1ea3o h\u1ed9 v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt m\u00e0 tr\u00ean th\u1ecb tr\u01b0\u1eddng xu\u1ea5t hi\u1ec7n kh\u00e1 nhi\u1ec1u s\u1ea3n ph\u1ea9m \u0103n c\u1eafp b\u1ea3n quy\u1ec1n v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng k\u00e9m. \u0110i\u1ec1u n\u00e0y l\u00e0 m\u1ed9t \u0111\u00f2n gi\u00e1ng m\u1ea1nh v\u00e0o c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t VCD. Hi\u1ec7u qu\u1ea3 ph\u00e1t h\u00ecnh c\u1ee7a VCD th\u01b0\u1eddng kh\u00f4ng l\u00e0m v\u1eeba l\u00f2ng m\u1ecdi ng\u01b0\u1eddi.<\/p>\n\n\n\n
DVD l\u00e0 s\u1ea3n ph\u1ea9m \u0111\u1ed5i th\u1ebf h\u1ec7 c\u1ee7a VCD. N\u00f3 \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u ch\u1ebf t\u1ea1o ra t\u1eeb vi\u1ec7c k\u1ebft h\u1ee3p nhi\u1ec1u k\u1ef9 thu\u1eadt ti\u00ean ti\u1ebfn. DVD s\u00e1nh v\u1edbi VCD th\u00ec dung l\u01b0\u1ee3ng l\u1edbn h\u01a1n nhi\u1ec1u, h\u00ecnh \u1ea3nh ph\u00e1t ra c\u00e0ng r\u00f5 n\u00e9t, \u00e2m thanh s\u1ed1ng \u0111\u1ed9ng. Dung l\u01b0\u1ee3ng \u0111\u0129a DVD c\u1ea5u tr\u00fac m\u1ed9t m\u1eb7t l\u00e0 7,4 GB (gigabyte: m\u1ed9t t\u1ec9 byte), dung l\u01b0\u1ee3ng \u0111\u0129a hai m\u1eb7t c\u00f3 th\u1ec3 t\u1edbi 9,4 GB. So v\u1edbi 640 MB (m\u00eagabyte: m\u1ed9t tri\u1ec7u byte) (dung l\u01b0\u1ee3ng \u0111\u0129a VCD) th\u00ec nhi\u1ec1u g\u1ea5p h\u01a1n ch\u1ee5c l\u1ea7n. Khi ph\u00e1t h\u00e0nh DVD th\u00ec hi\u1ec7u su\u1ea5t \u0111\u01b0\u1eddng ngang nh\u1eadn ra \u0111\u01b0\u1ee3c c\u1ee7a h\u00ecnh \u1ea3nh tr\u00ean m\u00e0n h\u00ecnh l\u00e0 530 h\u00e0ng.<\/p>\n\n\n\n
\u0110\u00e2y l\u00e0 h\u00ecnh \u1ea3nh \u0111\u1ed9 n\u00e9t kh\u00e1 cao.<\/p>\n\n\n\n
V\u1ec1 m\u1eb7t b\u1ea3o h\u1ed9 b\u1ea3n quy\u1ec1n th\u00ec t\u1ed5 ch\u1ee9c DVD ngh\u0129 c\u00e1ch \u00e1p d\u1ee5ng kh\u00e1 nhi\u1ec1u bi\u1ec7n ph\u00e1p \u0111\u1ec3 n\u00f3 kh\u00f4ng d\u1ec5 b\u1ecb ph\u1ee5c ch\u1ebf (coppi), \u0103n c\u1eafp b\u1ea3n quy\u1ec1n. V\u00ed d\u1ee5 DVD \u00e1p d\u1ee5ng m\u00e3 s\u1ed1 lo\u1ea1n tr\u00ecnh t\u1ef1 cho h\u00ecnh \u1ea3nh, 50% s\u1ed1 li\u1ec7u th\u00f4ng qua qu\u00e1 tr\u00ecnh ghi m\u00e3 theo to\u00e1n ph\u00e1p ph\u1ee9c t\u1ea1p, kh\u00f4ng th\u1ec3 ngh\u1ecbch \u0111\u1ea3o \u0111\u00e3 khi\u1ebfn cho h\u00ecnh \u1ea3nh do ph\u1ee5c ch\u1ebf (sang \u0111\u0129a) v\u0103n ki\u1ec7n DVD tr\u1ef1c ti\u1ebfp khi ph\u00e1t ra ta nh\u00ecn th\u1ea5y ch\u1ec9 l\u00e0 l\u1ed9n x\u1ed9n ho\u1eb7c \u00e2m thanh ch\u00f3i tai.<\/p>\n\n\n\n
\u0110\u01b0\u01a1ng nhi\u00ean, tr\u00ean DVD c\u00f2n l\u01b0u tr\u1eef c\u1ea3 ch\u00eca kh\u00f3a ho\u00e0n nguy\u00ean c\u00e1c s\u1ed1 li\u1ec7u h\u00ecnh \u1ea3nh sau khi l\u01b0u tr\u1eef theo c\u00e1ch \u0111\u1ea3o l\u1ed9n ch\u01b0\u01a1ng tr\u00ecnh. N\u00f3 \u0111\u01b0\u1ee3c c\u1ea5t trong sect\u01a1 (cung) b\u1ea3o m\u1eadt. Dung l\u01b0\u1ee3ng cung DVD th\u00f4ng th\u01b0\u1eddng l\u00e0 2048 k\u00ed t\u1ef1, c\u00f2n v\u1edbi cung b\u1ea3o m\u1eadt n\u00e0y l\u00e0 2052 k\u00fd t\u1ef1. B\u1edfi v\u1eady, kh\u00f4ng th\u1ec3 \u0111\u1ecdc n\u00f3 b\u1eb1ng c\u00e1ch th\u00f4ng th\u01b0\u1eddng. Ch\u00eca kh\u00f3a ho\u00e0n nguy\u00ean m\u1ed7i \u0111\u0129a DVD l\u00e0 th\u1ef1c t\u1ea1o n\u00ean theo to\u00e1n ph\u00e1p ng\u1eabu nhi\u00ean n\u00e0o \u0111\u00f3 b\u1eb1ng ph\u1ea7n m\u1ec1m. S\u1ef1 t\u1ea1o th\u00e0nh v\u00e0 l\u01b0u tr\u1eef c\u1ee7a n\u00f3 \u0111\u01b0\u1ee3c ho\u00e0n th\u00e0nh c\u00f9ng v\u1edbi vi\u1ec7c kh\u1eafc ghi b\u1ea3n g\u1ed1c. Thi\u1ebft k\u1ebf<\/a> cung b\u1ea3o m\u1eadt c\u0169ng l\u00e0 m\u1ed9t bi\u1ec7n ph\u00e1p ch\u1ed1ng \u0103n c\u1eafp c\u1ee7a DVD.<\/p>\n\n\n\n \u0110\u1ecdc DVD c\u1ea7n ph\u1ea3i d\u00f9ng DVD-ROM. Hi\u1ec7n nay DVD-ROM \u0111\u00e3 ph\u00e1t tri\u1ec3n sang \u0111\u1eddi th\u1ee9 ba. D\u00f9ng n\u00f3 kh\u00f4ng ch\u1ec9 c\u00f3 th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c \u0111\u0129a DVD m\u00e0 c\u0169ng c\u00f3 th\u1ec3 \u0111\u1ecdc \u0111\u0129a VCD th\u00f4ng th\u01b0\u1eddng, ho\u1eb7c ph\u00e1t \u0111\u0129a CD \u00e2m nh\u1ea1c. N\u00f3 l\u00e0 s\u1ea3n ph\u1ea9m cao c\u1ea5p ki\u00eam d\u00f9ng c\u1ee7a CD-ROM.<\/p>\n\n\n\n T\u1eeb kh\u00f3a: VCD; DVD.<\/p>\n","protected":false},"excerpt":{"rendered":" VCD th\u01b0\u1eddng g\u1ecdi l\u00e0 \u0111\u0129a nh\u00ecn nh\u1ecf. N\u00f3 l\u00e0 lo\u1ea1i \u0111\u0129a quang ch\u1ec9 \u0111\u1ecdc \u0111\u01b0\u1eddng k\u00ednh 12cm d\u00f9ng \u0111\u1ec3 l\u01b0u tr\u1eef tin h\u00ecnh. \u0110\u01b0a n\u00f3 v\u00e0o \u1ed5 m\u00e1y t\u00ednh ho\u1eb7c m\u00e1y VCD th\u00ec s\u1ebd ph\u00e1t \u0111\u01b0\u1ee3c ch\u01b0\u01a1ng tr\u00ecnh h\u00ecnh \u1ea3nh. S\u1ed1 li\u1ec7u l\u01b0u tr\u1eef tr\u00ean VCD \u0111\u1ec1u \u0111\u00e3 \u0111\u01b0\u1ee3c n\u00e9n. B\u1edfi v\u1eady, khi ph\u00e1t h\u00ecnh […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,13],"tags":[],"class_list":["post-10402","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-tin-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10402","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=10402"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10402\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=10402"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=10402"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=10402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}