I do a lot of industrial photography. If you can afford it (~$1000), my colleague has a SONY CD200 that I like. Sony has since replaced it with a SONY CD300. It uses a 3" rewriteable CD which you can pop out and plop into your CD drive to transfer pictures (no USB hookup needed). He's never filled the disc during any of his photo sessions.

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95 E320 Cabriolet, 169K