Hiya Tony..great meeting you last Saturday.

All Daihatsu vented discs corrode from the inside out prematurely, its just one of them things, far eastern low quality cast metals.

The "Rossini" look like another ordinary standard disc thats been in house milled. The titanium and magnesium will be only in the attractive coating that probably lasts the first wet week if your lucky.

Try Brembo but they are not cheap.