Thanks for your continued support guys!  I'm upto stage 3 of Retroheads 'mini-tutorial'

I've not took the plunge and upgraded to 4.1 for two reasons.  

The first being: After I copied the firemware.dol file to my SD card and used Bootmii to read it.  It advised that it wasn't a valid file.  So I cound't update.  Would you know why?

The Second I've been doing some digging around and I've read that if I downgrade to 3.2, there's a way I can play Burnt Backups from the main Disc Channel.  
Is this correct?  Can it be done with 4.1?  I don't think I will get my hands on a WD Passport until after Christmas now, but I want the simplest method of playing my disk backups.  Can you also suggest what application I will need to load into HBC to do this?

Thanks once again guys