Pay for what?
Anyway, I am by now possibly more confused than you seem to be!!! LOL!!!

Are you still trying to copy from a disc? Or have you managed to copy the entire contents of a video DVD to your computer and want to use the video from there?
If it is already on your computer and in a folder called Video_TS, then with Video Studio open, you right click on the Library pane and select 'Insert DVD/DVD-VR'. A little dialogue window comes up, with a big button in the bottom left with 'Import DVD Folder' on it. Press that. You then Browse to the location of the Video_TS folder on your computer and highlight/select 'Video_TS'. A progress bar should appear saying it is 'parsing' the contents of the folder. Then a directory tree should appear, showing all the 'chapters' on the disc. You can preview them in the little preview screen on that page. Then when you have decided which ones you want, you MUST tick the little box to the immediate left of each chapter. Then press OK. The selected chapters should then appear in your Library as individual clips and you can drag them to the timeline for editing.
If that does not work, then the usual fallback with VS10 (though no other version) is to simply use the Insert Video command in Video Studio, and point to the files in the Video_TS folder that have the extension .vob and Video Studio should then insert them into the library pane or the timeline. For Video Studio 10 can see .vob files as video files. And in reality, that is all they are -- mpeg files containing all the video clips on the DVD. VOB is merely the extension used by mpegs when they are burned to a video DVD.
And if that fails, then the final fallback is to open the Video_TS folder on your hard disc, and individually change the letters '.vob' at the end of those files which use that extension, to '.mpg'. Then use 'Insert Video' to import them into the library pane or timeline.