What site? Check to see if it allows you to create different folder, or projects. If so upload each one to a unique folder/project.
Insanity is hereditary, you get it from your children
If this post or another user's post resolves the original issue, please mark the posts as correct and/or helpful accordingly. This helps other users with similar trouble get answers to their questions quicker. Thanks.
Welcome to the forum.
When I have multiple DVD's (physical discs in my case), I will set up separate sub-folders, one for say "DVD_01," "DVD_02," etc., just as Neale suggests. Then, I Copy the VIDEO_TS folder (and its files) to the appropriate sub-folder. I then Import the VOB files from each sub-folder. That works fine for me.
So, put me down as a +1 for Neale's suggestion.