Strip Menu Languages With PGCEdit, How ??

If I am correct you want to remove LUs? Use Vobblanker to remove redundant LUs

Where menus are in different LUs, it's easy, as Calimari has said (why don't they author things this way in the first place? That is what an LU is for!!!) For separate language menus in the same VTS, what I do is also use PgcEdit. In the PGC Editor, I substitute the cells of the kept language for those of the one to be discarded. It's a matter of clicking the Vob/Cell ID and changing it to the corresponding English one. In both cases, I tend to reclaim space afterwards by calling Tools-FixVTS (current domain). This way, it does not matter how your player is set up for its default languages - they will always play your desired menu with no need to change the navigation one iota. Regards

Last tip: to remove the cells of a specific menu (such as a Bonus sub-menu, or an intro or transition) with PgcEdit, you can Kill Playback of the menu. If the menu has buttons, you will have to select the menu button to simulate. Usually, you have to select the button that returns to the main menu. In summary, I use Calimari's method to remove the useless LUs, Blutach's method to reuse the english (or french) cells in the foreign menus when they are not authored in different LUs, and the method explained above to remove useless menu cells, when, for example I have removed or blanked the bonuses. Finally, I use FixVTS or VobBlanker to regain the disc space. (Personally, I prefer FixVTS with its "In place" option, as it is a lot faster than VobBlanker.)

Is there a way to set a LU to another language? I am doing a DVD at the moment and all the menus are set as EN. I came up with the idea to go through them, find out which ones aren't EN and change them to the right one. But PgcEdit doesn't have this function. Or does it? Once I set them, I can easily select one and remove them all at once instead of going through each one and clicking Kill playback.

Use the LU plugin. You will have to duplicate the current english LU (and you will be prompted to enter a new language code for the new LU), and then remove the useless PGCs or cells in each LU. You will also have to edit the VM commands to remove the conditional jumps to PGCs or Cells belonging to the other language. Take care: it's not easy. Don't forget to do a backup first.

Setting a LU to another language generally won't help if there are mixed language menus in the LU. All you would be doing is making a mismatch for SPRM(0) and your player (which would not matter if there was only 1 LU). You can't make PGCs within a LU a different LU. Easiest is to find the conditional tests to the offending PGCs and remove these commands (as r0lZ suggested). Then delete uncalled PGCs and watch them vanish. Finally, FixVTS to reclaim space. No need to duplicate LUs. Regards

Right. If you want to remove the non-english cells, it is useless to create a new LU. To regain the disc space, it is also easy to change the VOB/Cell IDs of all foreign cells by the VOB/Cell IDs of the equivalent english cells. Finally, remove the unreferenced cells with FixVTS or VobBlanker.