In response to "Do you store images in your RDBMS, or do you instead store filenames?” In my tandem: Perl SDBM(random access indexing)/Flat File Databases(text data storage, fixed-length records) I store Bitmaps as text. Then, on the fly, I convert those text representations of images back into real images to display them to the end-user. This is a great security feature. This can be done on Windows O/S systems with Win32 Perl and the InLineBitMap conversion utility that comes with the Win32-GUI module.