I am using a Sony Alpha-100 DSLR camera (and don't use the Sony software). The files, both RAW (*.ARW for Sony) and *.JPG, have a DSC (Digital Still Camera) prefix then a number. The photos are in a DCIM (Digital Camera Images) folder and there is a separate 1 KB file SONYDSC.CFG. What is this configuration file used for? Can it be deleted when I download the photos?
I do a batch rename (using Adobe Bridge) to change the file names. A set of small (5 KB) *XMP files (Adobe Extensible Metadata Platform) is added when the RAW files (*ARW) are renamed. Don't the RAW files hold the metadata? If so, are the *.XMP files redundant?