If you want to convert some part of audio from the ogm file, drag the slide bar directly, or click the Play button to preview the media file, set the Start Time and the End Time. At last, click the convert button to start to convert ogm to mp3.

Make this lower case.
if you want to convert some part of audio from the ogm file, drag the slide bar directly, or click the play button to preview the media file, set the start time and the end time. at last, click the convert button to start to convert ogm to mp3.