RAW to JPG file conversions too small?

Hello,
I recently upgraded to CS3 from CS so I'm now using Bridge/ACR to convert my RAW files to .JPGs. What is puzzling me is, if I open one or more RAW files in Bridge, make some adjustments (usually WB, exposure, etc.), then use the Save Image option within Bridge to save the image(s) as .JPGs, I am getting very small file sizes (I'm using the Max Quality setting in Bridge, which is 10). For example, a RAW file goes from 6.5MB to 1.2MB. However, if I open the RAW file in Photoshop instead of Bridge/ACR, make adjustments, then save as a maximum quality .jpg, the file goes from 6.5MB to 4.5MB. My concern is that when using the batch/save option within Bridge I'm losing quality somewhere?
Any ideas?
Thanks,
FTP

Hi Omke,
Thank you for sharing your workflow--very generous and quite interesting.
Yesterday, I barged into an Adobe Forums thread similar to mine and I discovered the reason for the file size difference, it's the 10 setting you get when you select Maximum Quality from the Bridge Save Image dialogue box. Bridge, like PS, actually goes to a 12 quality setting, but you have to type in the 12 manually (a curious requirement) rather than selecting the Max Quality option, which always goes to 10. Once I manually typed in 12, my Bridge-converted (RAW to .jpg) files became precisely the same size as when I convert them using PS.
Here's a link to the thread:
charles badland, "raw to jpeg,jpeg file too small" #36, 30 Sep 2008 1:47 pm
Thanks again for your help and suggestions,
--FTP

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