08-10-2014, 09:36 AM
Most all 5.25" drive spin at 360 RPMs if they are capable of writing HD media (96 TPI/1.2MB type). I only use 360 RPMs for copying and imaging, but 300 RPMs works as well.
The slower the speed, the more samples per revolution you get. So, a disk imaged at 300 RPMs would yield a better representation of the original media. If we could image disks at 10 RPMs it would be even better! Does the difference between 300 RPMs and 360 RPMs matter? Probably not for most as either speed works fine for making a working duplicate of any disk.
If you jumper your drive for dual speed mode, you can then use the pull-down menu option to select the density and that will change the drive speed depending the density you select.
The slower the speed, the more samples per revolution you get. So, a disk imaged at 300 RPMs would yield a better representation of the original media. If we could image disks at 10 RPMs it would be even better! Does the difference between 300 RPMs and 360 RPMs matter? Probably not for most as either speed works fine for making a working duplicate of any disk.
If you jumper your drive for dual speed mode, you can then use the pull-down menu option to select the density and that will change the drive speed depending the density you select.