"but when I try to import I get the message, "Unreadable files: The following files could not be imported (they may be an unrecognized file type of the files may not contain valid data)." I'm working on a year old Powerbook (1.3) with OS 10.3.9."

You'll get that message if you try importing files that reside anywhere inside the iPhoto Library folder. For any file to be imported it must be outside that folder.

Try to rebuild the library by launching iPhoto with the Command+Option keys depressed and follow the instructions to rebuild the library. I'd select the first three options.

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when I try to import I get the message, "Unreadable files: The following files could not be imported (they may be an unrecognized file type of the files may not contain valid data)."

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I just bought my first mac a few months ago (macbook), and when I try to transfer my photos over from my PC, a few hundred of them receive this error message as well. It's strange to me, because it's jpeg photos and quicktime movies that do not transfer, and they are the same file types as the rest of the pictures that import just fine.

It's frustrating that I bought a mac partly to better organize my photos and video, and now I can't even organize all of my media on one computer. Anyone know what I can do about this?

Thanks!