Long story:

My Boxee computer does not like ‘VIDEO_TS’ very much, so I started converting them to – anyway much nicer – iso images. Try googleing that, you’ll see a ton of tools, each one with tremendous userinterfaces.

After letting my MacBook heat for a while, I got sick of it. Then I found a way to create images in terminal(.app).

Short:

Try this out (obviously without breaking the line…)
hdiutil makehybrid -udf -udf-volume-name DVD_NAME -o /path/to/iso/MY_AWESOME_DVD.iso /path/to/VIDEO_TS/parent/folder