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User manual Philips, model DVDRW22899

Manafacture: Philips
File size: 1.84 mb
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Language of manual:itenesfrdenl
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manual abstract


What discs to use 1.1 CD-Recordable / CD-ReWritable: What are the differences and when should you use each type? For optimum results it is extremely important that you use the right type of disc for your Philips CD- ReWriter or DVD+RW drive. First you should choose between using a CD-R or a CD-RW disc, depending on your specific application. The main difference between the two is that CD-R discs cannot be reused, since the data can be burned into them only once. CD-RW discs can be erased, however, and used over and over, hundreds of times. See the table below for an overview of application examples. Use CD-ROM No No To distribute information. CD-R Yes No To archive your data permanently. To share data with users who have a standard CD-ROM drive. For use in older CD-ROM drives (which cannot read CDRW). For audio CDs (most audio players cannot read CD-RW). CD-RW Yes Yes For work in progress, such as presentations, documents, etc. To make weekly archives of your hard drive. To transport large files between home and office. For testing purposes before recording on CD-R You should always use high-quality discs from well-known manufacturers for the best results when (re)writing disc at higher speeds. The importance of disc quality increases with higher disc writing speeds (expressed as x times the original standard CD data rate of 150 kB/s, or 1x). Since this Philips ReWriter drive can (re)write at high speeds, and the faster you write the less time it takes to produce a CD, we recommend that you use brand-name Recordable/ReWritable discs (preferably from Philips) for which the speed rating is explicitly specified on the packaging (i.e., Multi Speed, High Speed). Always use discs with a speed rating that is equal to or higher than the speed rating of your Philips CD-ReWriter or DVD+RW drive . HINTS: Use CD-ReWritables, which are reusable, until you are comfortable with the recording software. If you make a mistake, you can redo the recording without wasting a disc. After you record successfully to a CD-ReWritable, repeat the recording onto a CD Recordable. But if you want to check whether the actual burning of the disc will be successful, it is better to use the "test write" option from the recording software, since burning speeds for CD-RW are usually limited to lower values than burning speeds for CD-R. Most problems that occur during the creation of a disc are buffer underruns, which occur if the source data cannot be delivered fast enough by your computer to the CD-RW or DVD+RW drive. (Recent writing technology developments, like the proprietary Philips “Seamless Link” technology, are aimed at eliminating the problems this effect can cause.) The likelihood of a buffer underrun greatly increases with higher writing speeds. So using a CD-RW for checking the writing speed is not recommended, because, if the write operation on CD-RW (at a lower speed) is OK, this is absolut ely no guarantee that writing on CD-R (at high speed) will also be OK. 1.2 Writing speed and strategy Reliability before speed... With Philips advanced CD-RW or DVD+RW drives you can be sure of the data that you read and write. The primary mission of the high-speed CD-RW or DVD+RW drives that Philips produces is to safeguard your written data. The drive will always choose the best speed for writing your discs to ensure the highest data integrity possible. This optimal speed may be lower than that claimed by the disc manufacturer, or the disc may be defective in some way (dirty, scratched, etc.), but we take the view that the most important thing is your data, so we go to the lower speed. Not only do we safeguard your data for play back on your Philips CD-RW drive, but we ensure compatibility with all major CD-ROM drives on the market through exhaustive testing in our Quality Laboratories. You can send your finalized CD-R disc to anybody in the world with the knowledge that they will be able to read it. We recommend that you use only Philips CD-R and CD-RW discs to ensure the highest quality written data and audio discs. See also: The drive will perform an optimization check (OPC) to determine the best writing strategy at the highest (re)writing speed possible. If it finds none, it will try to find the best writing strategy for lower (re)writing speeds. The test is done in the OPC area (the inside of the disc). If the OPC area is not representative of the rest of the disc (which may be often the case with media of marginal quality), this may result in subsequent read problems on third-party CD-ROMs and even on Philips drives. So we guarantee only that the specific Philips drive which wrote the disc will be able to read it back, at the highest possible speed the drive determined for that disc. Recently a number of new proprietary technologies have been developed by Philips that overcome the problems generated by non-optimal circumstances during writing to discs. These new technologies encompass: “ Seamless Link” ...


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