Confused Over Type Of Extension

vbimport

#1

i have a file that look like this

video_ts.bup
video_ts.ifo
vts_01_0.bup
vts_01_1.vob

can someone direct me to a link or tell me how what this is, and what software and how i would use to burn this files to disk


#2

if you legally obtained those files, it would be very obvious (and i mean incredibly obvious) where they came from and what they are.