Irfan has pretty nice batch capabilites that might do what you want.  Play
with the Advanced Settings.

    Hmm ... your headers show that you are on Windows.

    If you get a copy of the jpeg libraries (either the source, and
compile it yourself, or install a pre-compiled set from somewhere, you
should have among the things a pair of programs:

    djpeg

and

    cjpeg

You can use them together to reduce the size of an image (by an integer
power of two).  An example would be:

    djpeg -scale 1/4 < large-filename | cjpeg > small-filename

What I use is a script called "make-smaller" (on my unix systems) which
is as follows:

======================================================================
#!/usr/local/bin/zsh
#
#    Shrink images by a factor specified on the command line.
#    If no factor is specified, use a default 2:1 reduction.
#
#    DoN. Wed Jul 12 20:09:37 EDT 2000
#
#    @(#) /usr/local/scripts/make-smaller
#
#
#    Get scale factor or default to 2
#
FACTOR=${1:-2}
#
#    Create a subdirectory for the reduced images, and make the
#    permissions right to allow access
#
mkdir smaller
chmod 755 smaller
#
#    Loop through all .jpg image files in the current directory and
#    Put a smaller copy in the "smaller" subdirectory
#
#    Skip any which already have an image of the same name in the
#    "smaller" directory
#
foreach i ( *.jpg )
    if [ ! -f smaller/$i ]
    then
        djpeg -scale 1/$FACTOR < $i | cjpeg > smaller/$i
        echo $i done
    else
        echo $i already present -- skipped
    fi
end
#
#    Change the permissions on the individual files so they can be accessed
#
chmod 644 smaller/*.jpg
======================================================================

    You should be able to do something like this using the MS-DOS
batch file.  Some parts of this probably are not needed for your
purposes.  This was written as part of my automatic generation of web
pages, with a similar script creating a thumbnails directory with even
smaller images.

    Perhaps someone familiar with PhotoShop will produce a way to
do it in there.

    Enjoy,
        DoN.

From: "Nik Beard" <nick@superchop.demon.co.uk>

PhotoShop Elements does this quite easily.  You tell it the folder of the source files, the
resolution of the destination files and the location of the destination folder.

 Yes.  In photoshop Elements (2 / 3) you can setup a seperate directory
to receive the 'reduced' size (and quality, if you like) versions, and
rename them as necessary) and a couple other nifties.

Do "   File | Process Multiple Files " and fill in the Guzintas and
Guzoutas and you're all set.

I suggest you copy a half dozen images to a new directory and play with
it a bit to make sure you have it set up right before launching a 200
files job ... there is no "STOP" button (AFAIK).

Cheers,
Alan

Hi...in ps7 create an ACTION.atn that does what you want; resets size
and dpi,  CC, lab sharpens,  maybe watermark or apply sig/copyr,
etc...

Then on your hard drive create a source dir and an output directory.

Then in ps7 under File>Automate>Batch, on the form - set your
preferences; eg. choose your action; specify source folder with
options, etc. Use the help file for these particulars.

Populate the source directory and then your ready to run your batch...
via file>automate>batch | OK.

go do something and come back later and harvest your output directory.
Maybe you could burn as you go...dunnoh.

cheers
Ken