Benchmark Software

What do you guys think the best harddrive benchmarking software is? Ive always used Sandra but Sandra2005 is giving me some strange replies, I dont think I beleive them.
My WD 80gb ata100 is 3 times faster than a maxtor fireball ata133! They are in different computers but something aint right.

 

For hard drives, HD Tach or Intel's IOmeter are both good tests.

 

Thanks BigB. Ill give em a whirl in bit.

Ive just found that the slower drive had a dma66 lead, I tried a different one which seems to be a dma100. None have markings on :|