I just ordered these
Sandisk cards from Adorama. They are rated as class 6 (minimum of 6mb/s), but their actual rating is 20mb/s. Normal price is $79.00 US, but sandisk has a $40.00 US rebate on them so the final price is $39.00 US.
Those Kingston card are class 4 cards, so they do at least 4mb/s, but less than 6mb/s.
As for the OP, I shoot PEF, then convert to DNG using Pentax Photo Lab. This results in 30MB sized DNGs +/-!!! Then I use Adobe DNG converter to compress the 30MB DNGs to around 12 MB.
Last edited by HawaiianOnline; 03-05-2008 at 07:50 PM.
Reason: Did not want to double post