v30 (4-1/91) onwards has the Dual layer function, I haven't heard anything about the voice loading issues, like I said v31 and v32 are the same.

The Navboot files for both v31 and v32 have the exact same creation date.

Here is the SIB for the v32 OS update disc, as you can see no changes from v31 to v32.

Xoutpost.com - View Single Post - Navigation V32 SIB

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.