"unreadable volumes" message, Mac OS X

Started May 18, 2003 | Discussions thread
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Leon
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"unreadable volumes" message, Mac OS X
May 18, 2003

I've had a Canon 10D since mid-March, and it has performed flawlessly for me until

last weekend, when I started getting the following message upon connecting the compact flash card to the iMac through my Lexar Firewire card reader. (I will post
this message to the Mac Forum, too.)

"You have inserted a disk containing no volumes that Max OS X can read. To use the unreadable volumes, click Initialize. To continue with the disk inserted, click Ignore."

Clicking Ignore and Initialize makes no difference.

But here's the odd thing: When I connect the camera to the iMac via USB, everything
works just fine, though of course the transfers are agonizingly slow. This makes

me think that perhaps the problem is with the card reader, though why a card reader
problem would produce an "unreadable volumes" message is beyond me.

The card is a Transcend 1 Gig compact flash. I've reformatted it in the camera
several times since this started, and have shot photos in both real and jpeg
formats. Nothing seems to make a difference.

I'm officially stumped.

Anybody here have any ideas? I'm going to try to borrow another card to test
the reader, but didn't know if perhaps someone had already encountered
this problem.

Thank you for any advice you can offer.

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