Yamaha CRW3200SX manual Technical Notes, Buffer Underrun Protection Function, Writing Methods

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Technical Notes

Buffer Underrun Protection Function

CD-R/RW drives are equipped with a buffer memory, which temporarily stores data that is being transferred. When the buffer memory becomes empty due to a delay of data transfer for any reason, a writing error happens. Such condition is defined as buffer underrun, and such an error is defined as a buffer underrun error.

Buffer Underrun Protection is featured in the CRW3200SX drive.

When buffer underrun almost happens, Buffer Underrun Protection temporarily suspends the writing process. Writing resumes when enough data has accumulated in the buffer memory. Buffer Underrun Protection in the CRW3200SX drive is extremely accurate, resulting in seamless recording before and after suspension.

Test writing

Test writing is a function to check for the possible occurrence of buffer underrun in your computer environment. When Buffer Underrun Protection of the CD writing software is activated, the test writing function cannot be operated. Buffer Underrun Protection should be deactivated to operate the test writing function.

Writing Methods

Disc-at-Once (DAO)

This method is used to write all data onto a disc in one operation. It writes multiple pieces of data without placing a space between data, starting with the innermost track of the disc. Once data is written by this method, no data can be added to the same disc even if there is free space available on the disc. This method is useful for making a backup copy of an entire disc.

Track-at-Once (TAO)

This method is used to write data on a disc on a track-by-track basis. A track can be defined as the smallest unit of area that contains an ordinary program, image file, text file, etc. This method enables you to add data to the same disc, one track of data at a time, as long as there is free space available on the disc. A disc that contains data written in several sessions is defined as a multi-session disc. An area that records data and management information (Lead-in/Lead-out) is defined as a session. Lead- in and Lead-out are signals written for stating the starting and ending points of one session.

Note

Ordinary audio CD players can only play back single-session discs or the first session on a multi-session disc. Do not record audio data on the second and subsequent sessions.

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Contents Page FCC Information U.S.A Achtung Page English Safety Precautions Iii Precautions for Transportation WarrantyTable of Contents High fidelity digital audio Features of the CRW3200SX DriveHigh speed writing/reading SafeBurn Enhanced stability writing technologyFront Panel Names and Functions of PartsNames and Functions of Parts Rear PanelDisclaimer of Indemnity Precautions on UseHandling Discs CopyrightCD-RW discs Compatible DiscsDiscs that can be written on CD-R discsComputer PC/AT compatible System RequirementsFor Windows Partial CAV Constant Angular VelocityOperating system Image fileCD writing software Computer Macintosh For MacintoshSerial Number Set up the CRW3200SX DrivePreparing the CRW3200SX Drive Serial NumberScsi ID 7∗ ➀ Scsi ID Number➁Termination Preparing the CRW3200SX DriveTurn off the computer and all peripheral devices Connect the CRW3200SX DriveSub half-pitch 50-pin pin-type for the CRW3200SX drive Scsi cableHalf-pitch 50-pin Centronics DC-IN connector Screw Arrow Turn on the power switch of the CRW3200SX drive For Windows 95/98/98 Second Edition/Me Check Recognition of the CRW3200SX DriveFor Windows XP For Windows 2000 ProfessionalDrive name is not shown or there is or mark Change the Sync data transfer settingPreparing the CRW3200SX Drive For Macintosh Install CD Writing SoftwareLoading/Ejecting a Disc Loading/Ejecting a Disc Manually Ejecting a Disc Operating system does not start up properly TroubleshootingAre the AC adapter and the power cable connected properly? Is the Scsi card installed properly?Is any CD writing software being used? Disc tray does not open when you press the eject buttonAren’t the pins of the Scsi connectors damaged? Is the terminator set properly?Is the disc set properly horizontally on the disc tray? Is the disc tray opened when the computer is restarted?Disc is ejected without order or it comes out spontaneously Is the disc icon shown on the screen? For MacintoshIs the disc compatible with the drive? P Troubleshooting No data can be read from a discPlayback of an audio CD CD-DA cannot be heard Is the disc ejected without order?For Windows Me Select Other problems Error message Buffer Underrun is shownIs there any problem with other Scsi devices? For Macintosh FirmwareChecking the firmware version in the CRW3200SX drive For Windows 2000 Professional/XPSupported Formats Write Read Play back *4 CRW3200SX Drive SpecificationsMode CRW3200SX Drive SpecificationsAC adapter AD-301205 CRW3200SX drive conforms to the following specifications CRW3200SX Drive Specifications Safety/EMC ComplianceDisc-at-Once DAO Technical NotesBuffer Underrun Protection Function Writing MethodsPacket Writing Technical Notes Session-at-Once SAOCanada

CRW3200SX specifications

The Yamaha CRW3200SX is a high-performance CD-RW drive that stands out for its impressive range of features and cutting-edge technologies. Designed for both professional and home users, this drive delivers exceptional audio and data recording capabilities, making it a popular choice for musicians, producers, and anyone who values high-quality audio.

One of the standout features of the CRW3200SX is its impressive writing speed. With a maximum writing speed of 32x for CD-R media, it allows users to efficiently create CDs without sacrificing quality. Additionally, the drive supports a variety of disc formats, including CD-R, CD-RW, and CD-MRW, making it versatile enough to handle different recording needs.

The CRW3200SX also incorporates advanced technologies to enhance the recording process. Its Automatic Write Speed feature intelligently adjusts the writing speed in real-time, ensuring optimal performance and reducing the risk of errors during the burning process. This ensures that users can confidently produce high-fidelity audio recordings with minimal hassle.

Another significant technology featured in the Yamaha CRW3200SX is the DiscT@2 technology. This innovative feature allows users to print designs or text directly onto the CD's surface during the burning process. This not only provides a professional look to the final product but also adds a personal touch, making it ideal for custom music releases or promotional materials.

In terms of audio performance, the CRW3200SX is equipped with Yamaha's proprietary R&D technologies that deliver pristine sound quality. With high-quality analog-to-digital conversion and low jitter, users can expect accurate and detailed audio reproduction. This drive is designed to meet the needs of audiophiles who demand nothing but the best in terms of sound quality.

The build quality of the Yamaha CRW3200SX is robust, ensuring durability and longevity. Its external design is sleek and modern, making it an attractive addition to any setup. Moreover, it features an easy-to-navigate interface, making it user-friendly for individuals at any experience level.

Overall, the Yamaha CRW3200SX is a versatile and reliable CD-RW drive that combines speed, quality, and innovative features. Whether for professional audio production or personal use, it delivers exceptional performance that meets the demands of modern users. With its advanced technologies and user-oriented design, the CRW3200SX remains a top choice for anyone looking to create high-quality audio CDs.
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