I believe you'll need ifoedit. You can download it for free. Choose the latest stable version ( .96 i think). Open the program and click "CREATE IFOs" (bottom). You'll get a dialog box, leave all the options intact but find the "FIRST .VOB OF TITLE SET" - that's the first file in your folder of vobs assuming they're in order. Hit "OK" and ifoedit should create, in the same folder, the files you need. Then you can burn. Ok?