Magento : How to change product folder name in media

Rename product folder( media/catalog/product) to any name (like custom_product)

You need to change from all media path ‘product’ to ‘products’ to below listed files.

file_exists(Mage::getBaseDir('media').DS.'catalog'.DS.'product'.DS.$size.DS.$image)
to
file_exists(Mage::getBaseDir('media').DS.'catalog'.DS.'custom_product '.DS.$size.DS.$image)

Replace following code 'catalog/product/' to 'catalog/custom_product/' in following files
 Product/Attribute/Frontend/Image.php
 Product/Attribute/Media/Image.php
Product/Image.php
 Product/Media/Config.php
 Entity/Product/Attribute/Frontend/Image.php