A format/codec pair may be saved with its selected options as a preset by typing a name in the 'Preset' box and clicking 'Save Preset'.If an option is grayed out, it does not apply to the selected format/codec. Hover over the options to see an explanation of what they do, and recommended settings. On the right, choose the required options for sample rate, bit rate, quality, bandwidth and so on, as available.If you can't find the desired entry, press 'Show All Formats' or 'Show All Codecs', but note that the dialog will not allow selection of incompatible format/codec pairs. Choose format or codec from the other list.The other list will be reduced to show only compatible entries.
On the left, choose either the format (left hand list) or codec (right hand list).