I also just got another PC Card to [Type I] CF adapter so I don't have to tax the Newton.  Could someone also recommend a CF to SD adapter?  Will something like this work: http://www.ebay.com/itm/NEW-SD-SDHC-SDXC-To-CF-Compact-Flash-Memory-Card-Adapter-Reader-M2-/151621004333?pt=LH_DefaultDomain_0&hash=item234d50ec2d ?
 

Or this?  http://www.ebay.com/itm/SD-MMC-SDHC-SDXC-to-Compact-Flash-CF-Type-I-Memory-Card-Reader-Adapter-/371245213999?pt=LH_DefaultDomain_0&hash=item566ff0692f

And one more thought.  Is it possible the adapter I'm using is fine but the SD card isn't.  Is SD-HC- going to cause problems?