Wd drive boots fine
 

Dave,

Just downloaded super duper this am and backed up to gtech drive (firewire 400) and all worked great!! Registered super duper (new mac user ..1st used with tiger before upgrade) and used on Wd My book studio edition 500 GB (USB, firewire 400,800, esata, red box) partitioned in half for time machine and super duper. Both gtech drive (all super) and WD super partition are bootable and work great , so far.
thanks for a great product and will keep you updated.

Jay

WD is being used on firewire 800 with 24" imac with 4gb ram and standard cpu.