Using MHDD 4.6 to check hard drives

Question

Following on from my previous post, I have run MHDD 4.6 from Hiren's Boot CD.

1) Does anyone know which commands I should be running to check the health of a drive?

2) I have run 'scan', but about 1/3 of blocks show up as a red X. Does this mean the drive is dead, or can it be recovered?

Answer 1

Various discussion of "red" blocks here, http://forum.hddguru.com/hdd-faq-t5.html