Multiple TWAIN image captures from devices are not supported
6/6/2007
Some Image Capture devices such as USB Webcams or digital cameras may have the ability to capture and store several images at once. The SSP TWAIN Device Image capture is designed to handle one image at a time. If your TWAIN device has the ability to capture and store multiple images, you may want to capture the images outside of SSP/SSB and import them into SSP/SSB normally.
(SSP17)