PRODUCT-NAME sorts and filters the files that you place in a directory. To keep the user interface responsive and reduce the number of pages a user has to navigate through to find a file, there is an upper limit on the number of files PRODUCT-NAME will process.
To make it easy to navigate files we recommend splitting them across directories,
perhaps named alphabetically such as A, B or AA-AH, AI-AZ, BA-BH and so on.