I'm gonna try it (1 Viewer)

A 4Gb memory card with a lifetime warranty for only £17.99 and at 20Mbps matches the Sandisk Extreme III for speed

MyMemory PRO Compact Flash Cards (133X)
MMCF1GB

Our new MyMemory 133X PRO Compact Flash cards have a minimum sustained read speed of 20MB per second offering high performance at an amazing price.

Warranty : Lifetime

www.mymemory.co.uk

so I received the card and tried a timed test on a D200 firing 20 RAW shots at 5fps on the unbranded and 20 on a SandiskIII time to write was almost the same a second or 2 in it, when I use the camera I will time the download to PC time and see if this is okay.
So apart from stability which I'll find out in the near future what are the differences?
Steve