# Insert Image Data into a Database

Some of the tracks that are produced by Media Server engines contain binary data (images). Usually Media Server output engines output this data in base-64 encoded form. However, when the ODBC output engine creates and processes pre- and post-XML, it replaces the image data with a GUID. This prevents the XML becoming excessively large and increases the speed of the XSL transformation. When the engine inserts information into your database, the GUID is replaced by the actual binary data.

If you use the ODBC output engine to write images, such as keyframes, into a database, you can therefore insert the images into a column that accepts binary object (BLOB) data.

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