hi,
First of all, the new Harry potter is SD2.8.1 so you dont need BWA since BWA is only used in the Securom version 4.8x.xxx and above !
So you can use the new clonecd, or you can use alcohol and you could still use Blindwrite but of the first two there have been good reports about the harry potter game !
Well, hope this helps you a bit !
Cheers