Custom | Lets you enter the desired length in the edit box. The Time/Frames radio buttons determine the input format. If Time is selected, enter a time in hh:mm:ss format; if Frames is selected, enter a frame count. |
Unlimited | Records indefinitely, i.e. until you stop the recording manually. |
Use AVI length | Sets the duration to the exact length of the input AVI file, and also automatically rewinds the AVI file at the start of the recording. Note that you must have an AVI file open, otherwise this option is disabled. |