HP C4392-90100 manual Hard Drive compression software, Achieving optimal performance

3-6 Solutions to Some Common Symptoms

Hard Drive compression software.

We do not recommend using hard drive compression software. If you use hard drive compression software, it estimates free hard drive space based upon a compression ratio (often user selectable). Programs may check your hard drive for space needed and may think you have the necessary free space. However, depending on the type of files you are copying, you may in fact not have enough hard drive space.

Achieving optimal performance.

Run SCANDISK.EXE and DEFRAG.EXE on your hard drive before using your CD-Writer Plus drive for the first time (see your Windows manual for more information). Then run them periodically after that. These programs improve access times to the hard drive, which will help improve system performance while writing to and reading from the CD- Writer Plus drive.

Buffer underrun error messages.

CD recordable devices require an uninterrupted data stream from the hard drive in order to write successfully to a CD. A buffer underrun message appears when for some reason the data stream is interrupted. This can occur, for example, if another application interrupts the writing process, or if the CD-Writer Plus drive’s write speed is set too high for the speed at which the hard drive can accesses and transfer data.

When using Easy-CD Creator or Disc Copier:

■Make sure you use the Test option in the software to ensure that the write speed is appropriate for your computer. For more information see the application’s online help.

■Make sure your system meets the minimum system requirements, see Minimum System Requirements on page A-1.

■Buffer underrun may be caused by hard drive compression software (see page 3-6).

■NEVER write to the recordable CD while other applications are running that could interrupt the writing-to-CD process. Log off any networks, disable any fax modem, email, screen saver, or other programs (such as TSRs, terminate-and-stay-resident programs) that may automatically send messages to your computer while writing data to the CD. If the interruption is long enough, you could ruin a write-once CD to which you are writing.

■Exit any other programs before writing data to the CD.