1、BC Referencenumber ISO/IEC16824:1999(E) INTERNATIONAL STANDARD ISO/IEC 16824 Firstedition 19990515 Informationtechnology120mmDVD rewritabledisk(DVDRAM) TechnologiesdelinformationDisquercritureDVDdediamtre 120mm (DVDRAM)ISO/IEC16824:1999(E) ISO/IEC1999 Allrightsreserved.Unlessotherwisespecified,nopar
2、tofthispublicationmaybereproducedorutilizedinanyformorbyan ymeans,electronicor mechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromthepublisher. ISO/IECCopyrightOffice Casepostale56 CH1211Genve20 Switzerland PrintedinSwitzerland ii Contents Page Section1General 1 1Scope 1 2Con
3、formance 1 2.1OpticalDisk 1 2.2Generatingsystem 1 2.3Receivingsystem 1 3Normativereferences 1 4Definitions 1 4.1Case 1 4.2Channelbit 2 4.3DigitalSumValue(DSV) 2 4.4DiskReferencePlane 2 4.5Dummysubstrate 2 4.6Embossedmark 2 4.7Entrancesurface 2 4.8LandandGroove 2 4.9Mark 2 4.10Phasechange 2 4.11Polar
4、ization 2 4.12Recordinglayer 2 4.13Sector 2 4.14Space 2 4.15Substrate 2 4.16Track 2 4.17Trackpitch 2 4.18ZCLV 2 4.19Zone 2 5Conventionsandnotations 2 5.1Representationofnumbers 2 5.2Names 3 6Listofacronyms 3 7Generaldescriptionoftheopticaldisk 3 8Generalrequirements 4 8.1Environments 4 8.1.1Testenvi
5、ronment 4 ISO/IEC ISO/IEC16824:1999(E) iii 8.1.2Operatingenvironment 4 8.1.3Storageenvironment 5 8.1.4Transportation 5 8.2Safetyrequirement 5 8.3Flammability 5 9ReferenceDrive 5 9.1OpticalHead 5 9.2 Readchannels 6 9.3Rotationspeed 6 9.4Diskclamping 7 9.5Normalizedservotransferfunction 7 9.6Reference
6、Servoforaxialtracking 7 9.7ReferenceServoforradialtracking 8 Section2Dimensional,mechanicalandphysicalcharacteristicsofthedisk 9 10Dimensionalcharacteristics 9 10.1Overalldimensions 10 10.2Firsttransitionarea 11 10.3Secondtransitionarea 11 10.4ClampingZone 11 10.5Thirdtransitionarea 11 10.6Rimarea 1
7、2 10.7Remarkontolerances 12 10.8Label 12 11Mechanicalcharacteristics 12 11.1Mass 12 11.2Momentofinertia 12 11.3Dynamicimbalance 12 11.4Senseofrotation 12 11.5Runout 12 11.5.1Axialrunout 12 11.5.2Radialrunout 12 12Opticalcharacteristics 13 12.1Indexofrefraction 13 12.2Thicknessofthetransparentsubstra
8、te 13 12.3Angulardeviation 13 12.4Birefringenceofthetransparentsubstrate 13 12.5 Reflectivity 13 Section3Formatofinformation 14 13Dataformat 14 13.1DataFrames 14 13.1.1DataID 15 13.1.2DataIDErrorDetectioncode(IED) 16 13.1.3Reservedbytes 16 13.1.4ErrorDetectionCode(EDC) 16 13.2ScrambledFrames 17 13.3
9、ECCBlocks 17 13.4RecordingFrames 19 13.5RecordingcodeandNRZIconversion 20ISO/IEC16824:1999(E) ISO/IEC iv 13.6RecordedDataField 21 13.7DCcomponentsuppressControl(DCC) 22 13.7.1DCCforthedataintheRewritableArea 22 13.7.2DCCforthedataintheEmbossedArea 22 13.7.3PIDandPEDrecording 23 14Trackformat 23 14.1
10、Trackshape 23 14.2Trackpath 24 14.3Trackpitch 24 14.4Tracklayout 24 14.5 Rotationspeed 24 14.6 Radialalignment 25 14.7Sectornumber 25 15Sectorformat 26 15.1Sectorlayout 26 15.1.1SectorlayoutintheRewritableArea 26 15.1.2SectorlayoutintheEmbossedArea 26 15.2VFOfields 27 15.3AddressMark(AM) 28 15.4Phys
11、icalID(PID)fields 28 15.5PIDErrorDetectioncode(PED)fields 29 15.6Postamble1andPostamble2(PA1,PA2)fields 29 15.7Mirrorfield 31 15.8Gapfield 31 15.9Guard1field 31 15.10PreSynchronouscode(PS)field 31 15.11Datafield 31 15.12Postamble3(PA3)field 31 15.13Guard2field 31 15.14 Recordingpolarityrandomization
12、 31 15.15Bufferfield 32 16FormatoftheInformationZone 32 16.1DivisionoftheInformationZone 32 16.2LeadinZone 34 16.2.1StructureofLeadinZone 34 16.2.2InitialZone 34 16.2.3 ReferenceCodeZone 34 16.2.4 BufferZone1 34 16.2.5BufferZone2 35 16.2.6ControlDataZone 35 16.2.7ConnectionZone 39 16.2.8 GuardTrackZ
13、ones1and2 40 16.2.9DiskTestZone 40 16.2.10 DriveTestZone 40 16.2.11ReservedZone 40 16.2.12DMA1andDMA2 40 16.3DataZone 41 16.3.1StructureofDataZoneandoftheDefectManagementAreas(DMAs) 41 16.3.2GuardTrackZones 41 16.3.3Partitioning 41 16.4LeadoutZone 43 16.4.1StructureofLeadoutZone 43 16.4.2DMA3andDMA4
14、 43 16.4.3 ReservedZone 43 ISO/IEC ISO/IEC16824:1999(E) v 16.4.4GuardTrackZone1 43 16.4.5DriveTestZone 43 16.4.6DiskTestZone 43 16.4.7GuardTrackZone2 43 17Defectmanagement 43 17.1DefectManagementAreas(DMAs) 43 17.2DiskDefinitionStructure(DDS) 44 17.3Sparesectors 46 17.4SlippingAlgorithm 47 17.5Linea
15、rReplacementAlgorithm 47 17.6PrimaryDefectList(PDL) 48 17.7SecondaryDefectList(SDL) 50 17.8Formattingofthedisk 51 17.8.1FullandPartialCertification 52 17.8.2Initialization 52 17.8.3Reinitialization 52 17.8.4DatafieldnumberresultingfromInitializationandReinitialization 53 17.9Writeprocedure 54 17.10R
16、eadprocedure 54 17.10.1BlankECCblock 54 17.10.2Readprocedure 54 Section4Characteristicsofembossedinformation 55 18Methodoftesting 55 18.1Environment 55 18.2ReferenceDrive 55 18.2.1Opticsandmechanics 55 18.2.2 Readpower 55 18.2.3 Readchannels 55 18.2.4Trackingchannel 55 18.2.5Tracking 55 18.3Definiti
17、onofsignals 55 19Signalsfromlandsandgrooves 60 19.1Pushpullsignal 60 19.2Dividedpushpullsignal 60 19.3Ontracksignal 61 19.4Phasedepth 61 19.5Wobblesignal 61 20SignalsfromHeaderfields 62 20.1VFO1andVFO2 62 20.2 AddressMark,PID,PEDandPostamble 62 20.3SignalsfromHeader1,Header2,Header3andHeader4 63 20.
18、4Phasedepth 63 21SignalsfromEmbossedArea 63 21.1HighFrequency(HF)signal 63 21.1.1Modulatedamplitude 63 21.1.2Signalasymmetry 64 21.1.3Crosstracksignal 64 21.2Jitter 64ISO/IEC16824:1999(E) ISO/IEC vi 21.3Servosignal 64 21.3.1Differentialphasetrackingerrorsignal 64 21.3.2 Tangentialpushpullsignal 64 S
19、ection5Characteristicsoftherecordinglayer 65 22Methodoftesting 65 22.1Environment 65 22.2ReferenceDrive 65 22.2.1Opticsandmechanics 66 22.2.2Readpower 66 22.2.3Readchannel 66 22.2.4Tracking 66 22.3Writeconditions 66 22.3.1Writepulse 66 22.3.2Writepower 66 22.4Definitionofsignals 66 23Writecharacteri
20、stics 67 23.1ModulatedamplitudeandSignalasymmetry 67 23.2Jitter 67 Section6Characteristicsofuserdata 67 24Methodoftesting 67 Annexes AMeasurementoftheangulardeviation a 68 BMeasurementofbirefringence 70 CMeasurementofthedifferentialphasetrackingerror 72 DReflectivitycalibrationandmeasuringmethod 76
21、ETaperedconefordiskclamping 78 FMeasuringconditionsfortheoperationsignals 79 G8to16RecordingcodewithRLL(2,10)requirements 81 HDefinitionofthewritepulse 91 JGuidelineforrandomizationoftheGaplength,theGuard1lengthandtherecordingpolarity 93 KTransportation 94 LGuidelineforsectorreplacement 95 ISO/IEC I
22、SO/IEC16824:1999(E) vii Foreword ISO(theInternationalOrganizationforStandardization)andIEC(theInternationalElectrotechnicalCommission)formthe specializedsystemforworldwidestandardization.NationalbodiesthataremembersofISOorIECparticipateinthe developmentofInternationalStandardsthroughtechnicalcommitt
23、eesestablishedbytherespectiveorganizationtodealwith particularfieldsoftechnicalactivity.ISOandIECtechnicalcommitteescollaborateinfieldsofmutualinterest.Other internationalorganizations,governmentalandnongovernmental,inliaisonwithISOandIEC,alsotakepartinthework. InternationalStandardsaredraftedinacco
24、rdancewiththerulesgivenintheISO/IECDirectives,Part3. Inthefieldofinformationtechnology,ISOandIEChaveestablishedajointtechnicalcommittee,ISO/IECJTC1.Draft InternationalStandardsadoptedbythejointtechnicalcommitteearecirculatedtonationalbodiesforvoting.Publicationasa n InternationalStandardrequiresappr
25、ovalbyatleast75%ofthenationalbodiescastingavote. ThisInternationalStandardwaspreparedbyJISC(asStandardJISX62431998)withdocumentsupportandcontribution fromECMAandwasadopted,underaspecial“fasttrackprocedure”,byJointTechnicalCommitteeISO/IECJTC1, Informationtechnology ,inparallelwithitsapprovalbynation
26、albodiesofISOandIEC. AnnexesAtoHformanormativepartofthisInternationalStandard.AnnexesJtoLareforinformationonly.INTERNATIONALSTANDARD ISO/IEC ISO/IEC16824:1999(E) 1 Informationtechnology120mmDVDrewritabledisk(DVDRAM) Section1General 1 Scope ThisInternationalStandardspecifiesthemechanical,physicalando
27、pticalcharacteristicsofa120mmopticaldisktoenable interchangeofsuchdisks.Itspecifiesthequalityoftherecordedsignals,theformatofthedataandtherecordingmethod, therebyallowingforinformationinterchangebymeansofsuchdisks.Thedatacanbewritten,readandoverwrittenmany timesusingthephasechangemethod.Thisdiskisid
28、entifiedasDVDRAM. ThisInternationalStandardspecifies - tworelatedbutdifferentTypesofthisdisk(seeclause7), - theconditionsforconformance, - theenvironmentsinwhichthediskistobetested,operatedandstored, - themechanical,physicalanddimensionalcharacteristicsofthedisk,soastoprovidemechanicalinterchangebet
29、weendata processingsystems, - theformatoftheinformationonthedisk,includingthephysicaldispositionofthetracksandsectors,theerrorcorrecting codesandthecodingmethod, - thecharacteristicsofthesignalsrecordedonthedisk,thusenablingdataprocessingsystemstoreadthedatafromthedisk. ThisInternationalStandardprov
30、idesfortheinterchangeofdisksbetweenopticaldiskdrives.Togetherwithastandardfor volumeandfilestructure,itprovidesforfulldatainterchangebetweendataprocessingsystems.Theopticaldisksspecifiedb y thisInternationalStandardmaybeenclosedincasesaccordingtoISO/IEC16825asspecifiedtherein. 2 Conformance 2.1 Opti
31、calDisk AclaimofconformancewiththisInternationalStandardshallspecifytheTypeimplemented.Anopticaldiskshallbein conformancewiththisInternationalStandardifitmeetsallmandatoryrequirementsspecifiedforthisType. 2.2 Generatingsystem AgeneratingsystemshallbeinconformancewiththisInternationalStandardiftheopt
32、icaldiskitgeneratesisinaccordance with2.1. 2.3 Receivingsystem AreceivingsystemshallbeinconformancewiththisInternationalStandardifitisabletohandlebothTypesofopticaldisk accordingto2.1. 3 Normativereferences Thefollowingnormativedocumentscontainprovisionswhich,throughreferenceinthistext,constitutepro
33、visionsofthis InternationalStandard.Fordatedreferences,subsequentamendmentsto,orrevisionsof,anyofthesepublicationsdonotapply . However,partiestoagreementsbasedonthisInternationalStandardareencouragedtoinvestigatethepossibilityofapplyingt he mostrecenteditionsofthenormativedocumentsindicatedbelow.For
34、undatedreferences,thelatesteditionofthenormative documentreferredtoapplies.MembersofISOandIECmaintainregistersofcurrentlyvalidInternationalStandards. ISO950:1991, Safetyofinformationtechnologyequipment. ISO/IEC16825:1999, InformationtechnologyCasefor120mmDVDRAMdisks. 4 Definitions Forthepurposesofth
35、isInternationalStandard,thefollowingdefinitionsapply. 4.1 Case: Thehousingforanopticaldisk,thatprotectsthediskandfacilitatesdiskinterchange.ISO/IEC16824:1999(E) ISO/IEC 2 4.2 Channelbit: TheelementsbywhichthebinaryvaluesZEROandONEarerepresentedbymarksandpitsonthe disk. 4.3 DigitalSumValue(DSV): Thea
36、rithmeticsumobtainedfromabitstreambyallocatingthedecimalvalue1to ChannelbitssettoONEandthedecimalvalue1toChannelbitssettoZERO. 4.4 DiskReferencePlane: Aplanedefinedbytheperfectlyflatannularsurfaceofanidealspindleontowhichthe clampingareaofthediskisclamped,andwhichisnormaltotheaxisofrotation. 4.5 Dum
37、mysubstrate: Alayerwhichmaybetransparentornot,providedforthemechanicalsupportofthedisk and/orarecordinglayer. 4.6 Embossedmark: Amarksoformedastobeunalterablebyopticalmeans. 4.7 Entrancesurface: Thesurfaceofthediskontowhichtheopticalbeamfirstimpinges. 4.8 LandandGroove: Atrenchlikefeatureofthedisk,a
38、ppliedbeforetherecordingofanyinformation,andused todefinethetracklocation.Thegrooveislocatednearertotheentrancesurfacethantheland.Therecordingismadeeither on thecentreofthegrooveoronthecentreoftheland. 4.9 Mark:AfeatureoftheRecordinglayerwhichmaytaketheformofanamorphousdomain,apit,oranyothertype orf
39、ormthatcanbesensedbytheopticalsystem.Thepatternofmarksandspacesrepresentsthedataonthedisk. 4.10 Phasechange: Aphysicaleffectbywhichtheareaofarecordinglayerirradiatedbyalaserbeamisheatedsoas tochangefromanamorphousstatetoacrystallinestateandviceversa. 4.11 Polarization: Thedirectionofpolarizationofan
40、opticalbeamisthedirectionoftheelectricvectorofthebeam. NoteTheplaneofpolarizationistheplanecontainingtheelectricvectorandthedirectionofpropagationofthebeam.The polarizationisrighthanded whentoanobserverlookinginthedirectionofpropagationofthebeam,theendpointoftheelectricvectorwouldappeartod escribean
41、ellipseinthe clockwisesense. 4.12 Recordinglayer: Alayerofthediskon,orin,whichdataiswrittenduringmanufactureand/oruse. 4.13 Sector:ThesmallestaddressablepartofatrackintheInformationZoneofadiskthatcanbeaccessed independentlyofotheraddressableparts. 4.14 Space: Afeatureoftherecordinglayerwhichmaytaket
42、heformofacrystallinedomain,anonpitoranyother typeorformthatcanbesensedbytheopticalsystem.Thepatternofmarksandspacesrepresentsthedataonthedisk. 4.15 Substrate:Atransparentlayerofthedisk,providedformechanicalsupportoftherecordedlayer(s),through whichtheopticalbeamcanaccessarecordinglayer. 4.16 Track:
43、A360turnofacontinuousspiral. 4.17 Trackpitch: Thedistancebetweencentrelinesofadjacenttracks(agrooveandaland),measuredinaradial direction. 4.18 ZCLV: AdiskformatrequiringZonedConstantLinearVelocityoperations. 4.19 Zone: Anannularareaofthedisk. 5 Conventionsandnotations 5.1 Representationofnumbers Ameasuredvalueisroundedofftotheleastsignificantdigitofthecorrespondingspecifiedvalue.Forinstance,itimpliest hat aspecifiedvalueof1,
