Hmmmm, So William Robb opened the PEF with ACR 4.3.1 with no problems. Did you try to convert it to DNG then open the DNG?
Godfrey opened the PEF with ACR 3.7, then saved it as a DNG with no problems. That's what didn't work right on my computer. Seems to indicate that I have a problem with my installation of ACR 3.7. P.J. couldn't read the PEF with either Raw Shooter Essentials or the Pentax Photo Browser. Hmmmm. Three people, three different results (four if you include me). Question is, do I have a bad K10D? Any more thoughts? --Mark -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

