Cannot open 2 of my 16 media cards in windows 7

[Starlight4]

Hello,
New computer......can downlosd all pics on 16 other media cards, but cannot open 2 cards. I had a friend put the 2 cards in his PC and they were fine. Any ideas here?

Thanks!

 

[philipac]

Hello,
New computer......can downlosd all pics on 16 other media cards, but cannot open 2 cards. I had a friend put the 2 cards in his PC and they were fine. Any ideas here?

Thanks!