the export setting I meant is under Granularity > File ( 2 options : Use File Size Limit and Create 1 File per shape. ) the second option generates 1 vob file for each single shape the first option generates as many files as needed, using the File Size Limit in MegaBytes, by default set to 500 MB. the File Size Limit uses a max of 500 MB RAM for the export, but then at the end optimizes the files again, so in the end, they're not 500 MB, but can be a lot less. (this may be a little confusing).
thus, your files are all around 100MB. If you increase this value, you'll get less files. entering 0 is 'no file size limit'.