Yamaha CRW2200S manual Buffer Underrun Defined, Yamaha Buffer Underrun Protection, Introduction

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Introduction

*1 16X- or 20X-speed writing is enabled with the Partial CAV method. (P. 6)

*2 10X-speed writing/rewriting is enabled with the CLV method, and the 4X-10X Full CAV method. (P. 7)

Buffer Underrun Defined

CD-R/RW drives are equipped with buffer memory. This memory temporarily stores data while a disc is being recorded. When buffer memory becomes empty (due to unexpected interruptions or the system’s inability to keep up with the writing process), a write error occurs. This error is known as a “buffer underrun error.”

Data

If data transfer is

interrupted...

Data is stored in

buffer memory...then buffer memory begins to empty

and then written to disc

When no data is left in buffer memory...

(Buffer Underrun)

writing fails (Buffer Underrun Error)

A Buffer Underrun Error will permanently ruin the disc.

Yamaha Buffer Underrun Protection

Buffer Underrun Protection is featured in Yamaha’s CRW2200 series CD-R/ RW drives. When a buffer underrun is about to occur, a buffer underrun error is prevented by temporarily suspending the writing process. Writing resumes when enough data has accumulated again in buffer memory. Buffer Underrun Protection on the CRW2200 series is extremely accurate, resulting in seamless recording between stop and continuation points.

If data transfer is

Once data transfer

interrupted...

resumes normally...

and buffer memory is

about to empty...

writing is suspended

enough data has accumulated in

buffer memory...

writing continues

Yamaha Buffer Underrun Protection ensures error-free results.

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Contents Page FCC Information U.S.A Achtung English Safety Precautions Iii Warranty Table of Contents Scsi convertor → Scsi Connection Set Up P→ E-IDE Atapi Connection Set Up P Introduction Features of the CRW2200 driveIntroduction Buffer Underrun DefinedYamaha Buffer Underrun Protection These are also required for Scsi connection Before UseSystem Requirements High Speed CD-RW discs*3 Supported DiscsCD-R discs*1 CD-RW discs*2About Partial CAV Constant Angular Velocity About CD-ROMsAbout 10X-speed writing/rewriting of a High Speed CD-RW disc Serial number Letters and 7 digits Serial NumberFront Panel Front and Rear of UnitRear Panel with the Scsi Convertor ➄ DC Input connector ➀ Digital Audio OUT connector➁ Analog Audio OUT connector ➂ Jumper switchLong-Nosed Pliers Scsi Connection Set UpTools Phillips ScrewdriverScsi Connection Set Up CRW2200S Setup FlowchartCover Front panel Connecting the CRW2200SOpening the Computer Shut down your computer and unplug it from the AC outletDischarge any static charge Left L Ground G Right R Audio cable To Sound card Connecting the analog audio cableAudio cable connection Connect the audio cable to the CRW2200 drive. If necessaryGround G Signal D Digital audio cable To Sound card Connecting the digital audio cableScrew Installing the Scsi Convertor to the CRW2200 driveDC Input Yellow wireRear Panel Setting the Jumper SwitchesJumper switches Scsi ID ➀ Scsi ID Number➂ Termination ➁ Parity CheckWorkstation Block size OFF Default Block size onSet to on when installing ➃ Block SizeCD-ROM drive As a replacement driveChoosing the Connection Method Inch drive bay slot Front cover Installing the CRW2200SAudio cable Pin IDE cable Pin power cable Motherboard Colored line connector Scsi connector 50-pin Scsi flat cableSpdif Digital audio cable Sound cardTop Bottom Power cable Pin power cable Reconnect the computer to the AC outlet and turn it on For Windows NT Configuring for the Operating SystemInstall the CD writing software Installing the CD Writing SoftwareRemoving the Scsi convertor Removing the Scsi convertorRemoving the Scsi convertor Audio cable Pin Scsi flat cable Pin power cableRemove the Scsi convertor from the CRW2200 drive IDE Atapi Connection Set Up IDE Atapi Connection Set Up CRW2200E Setup FlowchartConnecting the CRW2200E Choosing the Connection Method Slave Motherboard Primary Master Secondary SlaveMaster Typical IDE-type hardware installationAbout IDE Example-1 As secondary slave For supplemental drive Connecting examplesIDE Atapi Connection Set Up Rear Panel Master Slave factory setting About the Csel jumper switchAs an supplemental drive Installing the CRW2200EConnect the audio cable. If necessary Ground G Signal D Digital audio cable Top DC Input connector Bottom Pin power cable Configuring for the Operating System About DMA Settings Setting of Transfer Mode About DMA Ejecting a Disc OperationLoading a Disc Manual Eject hole Paper Clip Ejecting a Disc in an EmergencyOperation Yamaha CD-R/RW Drives web site URL Europe TroubleshootingTroubleshooting Disc keeps being ejected Setting of the Windows Media Player Properties setting of the CRW2200SBuffer Underrun error message is displayed Track-at-Once TAO AppendixWriting Modes Disc-at-Once DAOAppendix Session-at-Once SAOPacket Writing URL for Yamaha CD-R/RW Drives web sites Europe About firmwareStatus Ndicator essages LED olor LED Indicator MessagesCD-RW CRW2200 drive CRW2200 series complies with the following specifications Index SymbolsPhillips Screwdriver 12, 32 Russia EUROPE, Eastern Europe