computer won't recognize my Kingston 64 gig CF

<p>I recently bought a Kingston 64 gig cf card for a 2 week trip to the Philippines. I had no real issues till just recently. I took some graduation pictures and then tried to upload them to my MacBook Pro and it won't be recognized. The reader works because my other cards show up. the card in question still has the pictures on them.</p>

<p>anyone ever have this issue?</p>

<p>David</p>

<p>not sure if this is the right forum i shoot with a Canon 7d</p>

<p> </p>

<p>Try the card in another computer and see if you get the same result. One trick that works (sometimes) is using an external card reader plugged into a USB port on the computer. Just make sure that the reader is compatible with a 64-gb CF card.</p>

While I don't like to do it, remember that you can use your camera to download the card directly to your computer. Once

you have a safe copy you may start testing to solve the problem with the card reader.

<p>Ditto, William's suggestions. I have a Lexar 8 GB SD card that won't transfer in my laptop's built in card reader, but will with an external USB 2 card reader in the laptop. No problems in the desktop.</p>

<p>And I have an old Sandisk 1 GB CF card that won't work in my Nikon D2H, but will work in other cameras.</p>

<p>Who knows. Digital weevils or personality clashes.</p>

<blockquote>

<p>anyone ever have this issue?</p>

</blockquote>

<p>Yes, so I used a newer card reader and it worked fine. It could be any number of things--reader, card, cable, hub, computer port, OS, etc.--but each time it happened to me it was an older reader that needed tossing. My Lexar Workflow SR1 reads my Transcend and Kingston 32 and 64GB cards like a champ.</p>

<p>Like the others have suggested, if you need those images pronto, download them to your Mac via Wi-Fi or USB cable. Fix the reader issue later.</p>

My guess is that any cards above 32GB are formatted with

the EXFAT file system and that's where you get

incompatibility. Similarly any cards below 2GB could be

formatted FAT16. So a reader made when all cards were in

megabytes expects FAT16 and chokes on FAT32 multi-GB

cards. A reader made to expect FAT32 chokes on cards that

were formatted in the newer EXFAT system (because FAT32

has a 2GB maximum file size and is increasingly inefficient

past 30GB) of sizes above 32GB. In SD cards this is one of

the differences between SD,SDHC, and SDXC so at least it

gets labeled.

<p>Agree with Steve - I've seen the 32GB limit in the past as well.</p>