Kurzweil Forte Manual page 230

Keymap and Sample Editing
Editing Samples
Note On Saving Samples: Trimmed portions of a sample are not saved. Trimmed
portions before the Start, or Alternative Start points. Trimmed portions of a sample
saved to a user ID will be deleted. Trimmed portions before the Start or Alternative
Start points (whichever has a lower value) will be lost upon saving to a user ID,
and whichever parameter had a lower value will have a value of zero the next time
it is loaded (values for all other sample point parameters will be adjusted relatively).
Trimmed portions after the Alternative Start or End points (whichever has a higher
value) will be lost upon saving to a user ID. The original untrimmed sample is always
available by selecting the sample's original factory ID number. Saving trimmed
factory samples to user IDs will not change the sound of factory samples, keymaps, or
Programs.
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