I have both a mk3 and a mk4 and all the images I make are mod2/form1 so that they work in both the mk3 and the mk4.

V5.5 works fine with me...

If the image is not mode2 already then make one, (use mode2convertor and m2cdmgui), then save as a mode2, (this is what I do, I don't bother with magiciso).

Then you can open the mode2 image (normally a .bin) then do the changes, then save (not save as), and it keep the Original file mode.

You can not open a mode1 image and save as a mode2 image, it does not work like that, it must be mode2 first.

HTH

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Sept 03, M3, Silver Grey. Retro-fits: Modded Mk4 DVD Drive, OEM Bluetooth, VR Control, Rainbow Speaker Upgrade, Sony SOT Amp, HK Sub, CCFL, Intravee II, NightMode.