The format of your media file. For example: MP4, QuickTime (MOV), Matroska (MKV), WebM, MXF, Wave, AVI, or MPEG-TS. Note that this will be blank if your media file has a format that the MediaConvert Probe operation does not recognize.
The start timecode of the media file, in HH:MM:SS:FF format (or HH:MM:SS;FF for drop frame timecode). Note that this field is null when the container does not include an embedded start timecode.