[Dan Kabat]

Chris - would you be so kind as to give some advice. Have tested card reader and cards as you suggested.

Card reader - Sandisk Extreme USB 2.0
Cards - 8gb Sandisk Extreme III
8gb Ridata (much slower than Extreme III)
8gb Kingston (much slower than Extreme III)

Test:
All cards formatted in camera
Downloads properly from D300 - Kingston and Ridata
Downloads properly from D200 - all brands

The only thing that didn't work were the Extreme III (tried 2 of them).

Thought it definitely was the card reader until I tried the Extreme III in the D200 and that worked fine. Now I don't know what is bad, the reader or ?.

Thank you
Dan

[DavidB]

The trouble is that it may be a combination of several things. My experience with card readers is that they can all have problems, so it's best to have a spare; they are not particularly expensive. What works in one reader does not work in another, and vice versa.

Also, this is one case where a known brand product is not necessarily better than the unknown make. If you have a trusted computer dealer, ask him or her for whatever card he/she has least trouble with. If you find that particular cards give trouble in more than one reader, then you should, of course suspect the card. FWIW, the least troublesome reader I have is from Peak.

David

[Dan Kabat]

It was the card reader that was the problem. Got a new UDMA reader and all worked well.

Very strange though in that the old reader worked fine in XP but would not now work on some cards in Mac using a Win 7 virtual machine.

Thanks
Dan