Canon K-64 User Manual page 149

Example Operating Conditions
Frame rates have been rounded to the nearest integer (for
example, exactly 30 frames per second is not usually achieved
Note
due to occasional frame dropping, therefore 29.9 or 29.8 frames
per second would be achieved).
The limitation to 10 frames per second at 640x480 is the
maximum frame rate provided by the Camera Servers, not a
limitation of the Storage Server.
These are samples from a specific configuration. As many
factors can influence the actual performance possible
(including networking equipment, disk write speed, complexity
of camera image, etc), the actual performance of VK-64
recording in a specific installation will vary. Please be sure to
confirm under the actual installation conditions before starting
operations.
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