Disk Utility said it was corrupt and couldn't be retrieved. Stuck it in and out a few more times on the mbp and finally got it copying - think the card readers on both the laptop and desktop are scuppered - never liked SD readers built into apple things - seem prone to wear. But still not sure why it wouldn't show up in windows when plugged into the cam. Anywho, working now.
Disk Utility said it was corrupt and couldn't be retrieved. Stuck it in and out a few more times on the mbp and finally got it copying - think the card readers on both the laptop and desktop are scuppered - never liked SD readers built into apple things - seem prone to wear. But still not sure why it wouldn't show up in windows when plugged into the cam. Anywho, working now.