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I wasn't thinking in terms of a *physical* RAM-based disk drive, using RAM on a PCI-based card or something. That's always going to be much slower than using standard motherboard-based memory; PCI bus bandwidth is usually only 133 MB/sec on PC motherboards and even 66 MHz, 64-bit PCI is only 533 MB/sec. I was thinking about the OS using some amount of system memory as a temporary filesystem. Granted, it's currently only server-based (and high-end workstation) system boards that can go above 4 GB, but with the price of memory being what it is, I can't see that staying the case for long. I was also thinking in terms of professional image editing. -- Robert Krawitz <firstname.lastname@example.org> http://www.tiac.net/users/rlk/ Tall Clubs International -- http://www.tall.org/ or 1-888-IM-TALL-2 Member of the League for Programming Freedom -- mail email@example.com Project lead for Gimp Print/stp -- http://gimp-print.sourceforge.net "Linux doesn't dictate how I work, I dictate how Linux works." --Eric Crampton - Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions.