1 part of 2 differents movies on 1 dvd-r

[machine70]

hi
i've 2 sets of vob files that i'd like to burn on a dvd-r (first 1 in title 1 2nd 1 in titles 2)
can anyone tell me how to edit the video-ts.ifo so that it works?
thanx

[just_maurice]

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