How Can I Make PS Retain All EXIF Data?

When I save a JPEG out of PS it no longer has all the EXIF data. Here is an example. The first listing is the EXIF data from the virgin file. The second listing is the EXIF data after the same file is saved in PS. No other changes were made, simply a save.

The virgin list contains 64 entries.
The list after PS save contains only 39 entries.

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File: – F:\Digital Camera\IMG_0696.JPG

Make – Canon
Model – Canon PowerShot SD700 IS
Orientation – Top left
XResolution – 180
YResolution – 180
ResolutionUnit – Inch
DateTime – 2006:10:06 11:25:56
YCbCrPositioning – Centered
ExifOffset – 196
ExposureTime – 1/60 seconds
FNumber – 11.00
ExifVersion – 220
DateTimeOriginal – 2006:10:06 11:25:56
DateTimeDigitized – 2006:10:06 11:25:56
ComponentsConfiguration – YCbCr
CompressedBitsPerPixel – 5 (bits/pixel)
ShutterSpeedValue – 1/60 seconds
ApertureValue – F 10.95
ExposureBiasValue – 0.00
MaxApertureValue – F 5.48
MeteringMode – Multi-segment
Flash – Flash fired, auto mode
FocalLength – 23.20 mm
UserComment –
FlashPixVersion – 100
ColorSpace – sRGB
ExifImageWidth – 2816
ExifImageHeight – 2112
InteroperabilityOffset – 2824
FocalPlaneXResolution – 12515.56
FocalPlaneYResolution – 12497.04
FocalPlaneResolutionUnit – Inch
SensingMethod – One-chip color area sensor
FileSource – DSC – Digital still camera
CustomRendered – Normal process
ExposureMode – Auto
WhiteBalance – Auto
DigitalZoomRatio – 1.00 x
SceneCaptureType – Standard

Maker Note (Vendor): –
Macro mode – Macro
Self timer – 100/10 sec
Quality – Superfine
Flash mode – Auto
Sequence mode – Single or Timer
Focus mode – Single
Image size – Large
Easy shooting mode – Manual
Digital zoom – None
Contrast – Normal
Saturation – Normal
Sharpness – Normal
ISO Value – 16484 (other)
Metering mode – Evaluative
Focus type – Close-Up
AF point selected –
Exposure mode – Easy shooting
Focal length – 5800 – 23200 mm
Flash activity –
Sequence number – 0
White Balance – Auto
Image Type – IMG:PowerShot SD700 IS JPEG
Firmware Version – Firmware Version 1.00
Image Number – 1000696
Owner Name –

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File: – F:\Digital Camera\IMG_0696.JPG
Make – Canon
Model – Canon PowerShot SD700 IS
Orientation – Top left
XResolution – 180.00
YResolution – 180.00
ResolutionUnit – Inch
Software – Adobe Photoshop CS2 Windows
DateTime – 2006:10:06 10:36:38
YCbCrPositioning – Centered
ExifOffset – 232
ExposureTime – 1/60 seconds
FNumber – 11.00
ExifVersion – 220
DateTimeOriginal – 2006:10:06 11:25:56
DateTimeDigitized – 2006:10:06 11:25:56
ComponentsConfiguration – YCbCr
CompressedBitsPerPixel – 5 (bits/pixel)
ShutterSpeedValue – 1/60 seconds
ApertureValue – F 10.95
ExposureBiasValue – 0.00
MaxApertureValue – F 5.48
MeteringMode – Multi-segment
Flash – Flash fired, auto mode
FocalLength – 23.20 mm
UserComment –
FlashPixVersion – 100
ColorSpace – sRGB
ExifImageWidth – 2816
ExifImageHeight – 2112
InteroperabilityOffset – 992
FocalPlaneXResolution – 12515.56
FocalPlaneYResolution – 12497.04
FocalPlaneResolutionUnit – Inch
SensingMethod – One-chip color area sensor
FileSource – DSC – Digital still camera
CustomRendered – Normal process
ExposureMode – Auto
WhiteBalance – Auto
DigitalZoomRatio – 1.00 x
SceneCaptureType – Standard

jim
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CS2