CD&DVD Disc Introduction

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1、CD&DVDDiscIntroductionContentsCDvs.DVDHistoryCDsColorbooksDVDsTestDiscsSortedbyRecordedTypeReadOnlyWriteOnceRewritableCDCD-ROMCD-R(CD-WO)CD-RW(CD-E)DVDDVD-ROMDVD-RDVD-RAM,DVD-RW,DVD+RWRecordable,WriteOnceReWritable,ErasableRandomAccessMemorySortedbyLayer/SideCDDVDSingle-sided/Singl

2、eLayer(DVD-5)Single-sided/DualLayer(DVD-9)Double-sided/SingleLayer(DVD-10)Double-sided/DualLayer(DVD-17)DiscsDVDSortedbySectorDataFormatCDAudioDataMode0Mode1Mode2Mode2Form1Mode2Form2DVDOnlyone,justlikeCD-ROMMode1All0,neverseenCD/DVD–SectorStructure2353AudioCD-DASyncMode1Hea

3、derData0ECCSyncMode2HeaderDataSyncMode2Form1HeaderEDCData0ECCEDCSyncMode2Form2HeaderData0DVDIEDData(2048)CPR_MAIEDCIDSortedbyApplicationCDDVDAudioRedBookDVD-AudioVideoWhiteBookDVD-VideoDataYellowBookDVD-ROMPhoto-CD--CDPlusBlueBook--CD-Text--…--CD/DVD–PhysicallyCDDVDSide11or2Layer1

4、SingleLayer,DualLayerThickness1.2mm0.6mm/sideScanningVelocity1.2~1.4m/secSingleLayer:3.49m/secDualLayer:3.84m/secWavelength780nm650/635nmTrackPitch1.5~1.6um0.74umPitLength*0.858um(3T)~3.341um(11T)SingleLayer:0.400um(3T)~1.866um(14T)DualLayer:0.440um(3T)~2.054um(14T)*DependonScann

5、ingVelocityCD/DVD–LogicallyCDDVDSingleLayerDualLayerUserDataCapacity75Min(650MB)4.70GB8.54GBUserDataBitRate(1X)150KB/s11.08MbpsUserDataperSector2352/2048/2336/2324bytes2048bytesModulation8-to-14(EFM)8-to-16(EFM+)ErrorCorrectionCIRCRS-PCSub-channelYesNoAddressingMSFLBA(PBA)Historyht

6、tp://web.mit.edu/invent/www/inventorsR-Z/russell.htmlhttp://www.cdpage.com/CDHistoryDiagramRedBook1980byPhilips&SonyThebaseofallCDspecificationsForaudioonly16bits(2bytes)/2channel/44.1KHzAddressedbyMinute/Second/Frame1second=75frames44.1x10^3x2x2=176400bytes=2352bytes*752352bytes=2

7、4bytesx98SectorConstructionRedBookDataMainChannel:UserdataSub-channel:control&displaydataP~WDiscLead-in+ProgramArea+Lead-out74*60*75=333000blocks333000blocks*2KB=666000KB=650MBRedBookLead-inMainChannel:0Sub-channel:TOCProgramAreaMainChannel:UserdataSub-channel:Timecode/Trackinforma

8、tionLead-outMainChannel:0S