Iomega CD-RW USB 2.0 Drive User Manual page 15

For audio CDs, do not copy directly from another CD.
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Make MP3 files of your favorite tracks on your hard drive, then copy them to your CD.
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Verify that you are using the latest firmware for your CD-ROM drive. Check with your CD-ROM drive manufacturer for updates.
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Lower the recording speed and retry the burn.
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A Buffer Underrun Error Occurred
CD writing is a process that must run constantly at the selected recording speed, without interruptions. The Iomega CD-RW drive's buffer is constantly filled with a reserve of data
waiting to be written, so that small slowdowns or interruptions in the flow of data from the computer do not interrupt writing.
A buffer underrun error means that the flow of data from the source (e.g., hard disk, CD-ROM drive) to the Iomega CD-RW drive was interrupted long enough for the Iomega CD-
RW drive's buffer to be emptied, and writing was halted. If this occurs during a write operation your recordable disc might be ruined.
To Avoid Buffer Underrun Errors
Record at a slower speed.
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It might be necessary to write audio at slower speeds than those you can achieve for data, since writing CD-DA audio requires streaming more bits per second to the Iomega
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CD-RW drive.
Keep the CDs, the recorder, and your source CD-ROM drive free of dust.
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Do not try to copy empty directories, zero byte files, or files that might be in use by the system at the time of recording.
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If your data includes more than 10,000 very small files, create a disc image first, or record at a slower speed.
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The temporary directory should always have free space at least twice the size of the largest file you are recording.
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Do not record across a network. Copy the desired files to your local hard drive.
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If you are using a CD-ROM drive as the source for CD to CD copying, enabling DMA (Direct Memory Access) might improve system performance. Check the documentation that
came with your computer to see if your hard drive and CD-ROM drive support DMA.
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To enable DMA on Windows 98/Me:
On some systems, you need to change the BIOS settings to add DMA support, check the user's manual that came with your computer for more information.
NOTE:
1. Right click My Computer on the Windows desktop and select Properties.