Yamaha CD Recordable/Rewritable Drive CRW-F1-NB - Manual (Page 35)

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Recommended DMA settings (transfer mode settings)
Direct Memory Access (DMA)
DMA is a method that transfers data between various peripheral devices (e.g., a
hard drive, CD-R/RW drive, etc.) and the computer memory without going
through the CPU in the computer. DMA transfer setting increases the data transfer
speed and the processing speed by reducing strain on the CPU.
Install the CD writing software. For details about installing the CD writing software,
refer to the instruction for it.
Operating System Recommended Remarks
Windows XP/
2000 Professional
DMA mode PIO mode if operation
becomes unstable
Windows 95/98/
98 Second Edition/Me
Check Uncheck if operation
becomes unstable
5 Install CD Writing Software