Quick question about cell & vobid's w/ IFOEdit

[defense]

Can someone please tell me exactly what it is I am looking at after I click "VOBEXTRAS" with IFOEdit & strip all languages and subtitles except for English...The screen says "VOBIDS" and I have read about cells and I use VOBRATOR and DVD2AVI to analyze the cells and see what is there, but when I go to IFOEdit and strip the VOBS, and I get that "VOBIDS" screen, I have no clue what I should select or not select. Sometimes there is only 1 or 2 VOBIDS and I select them both. But in some instances there are 20 or more, and because I don't know what they are, I just select them all and hope the output with everything stripped is 4.37 GB's or less. The problem is for a movie like Me, Myself & Irene for instance. I just stripped everything but the english 6 channel sound and the english subtitle, and the total file size was 4.63 GB'S'. Too big too fit on a DVD-R. When I hit VOBEXTRAS and went to strip it, there were 20 VOBID'S. I'm sure If I knew what they were then I could only select the main movie and I would hopefully be able to fit it on one DVD-R without reencoding. I'm not sure why some movies have 1 or 2 VOBID'S and then some have 20 or more.

If someone could explain what those VOBID'S indicate so that I might be able to strip ME, MYSELF & IRENE a little further so that I can fit it or another movie similar, in the future onto 1 DVD-R without reencoding, I would appreciate it. Thanks in advance

[defense]

Thanks for all of the replies. There were so many, I didn't have time to read them all. Fortunately, I have figured out the answer to my question.

thanks again to defense for all of your help..that would be me by the way.