The easiest bulk method to use is File Selection. In the bulk settings dialog, choose File Selection, then add the files you'd like to process. They will be processed in the order you choose. When choosing the files, you can hold down Ctrl to select more than one. You can manipulate the processing order using the up/down buttons.

When adding jobs, the first input file for the first job step will be the files you've selected. It doesn't matter what you put for the input file name for the first step - it will be ignored, but the field can not be empty. For every field and job after that, anywhere there's a * in the name, the name of the first file will be replaced. The name of the first file is everything from the last \ character to the . in the file extension.

For example: say I select the file C:\videos\first-capture.avi. The first processing job will use C:\videos\first-capture.avi as it's input file. I specify the output will be C:\videos\*-out.avi. The file that will be written will be called C:\videos\first-capture-out.avi.