joining multiple VOBs into a single DVD

As given in a previous post, this is fairly straight-forward when the resulting DVD can fit in a regular DVD5 disc. But when it's bigger, must use DVD Shrink. And DVD Shrink does not play nice with the ifo files created with ifoEdit. Had to
1. Create ifo files separately with ifoEdit for each PGC ripped into it's own folder making sure DVDDecrypter had the File Splitting set to 1 GB in settings. Still didn't work with Shrink.
2. Had to rip one of the parts with DVD Shrink itself, shrinking it in the process
3. In Re-author mode of DVDShrink, drag and drop required ifo files
4. Set Start/End Frames for each title, hit Backup.