Hi. I m using TDMDownloads. www.ilkmatzum.com
module have 4000 files and later have blank page error.
I sayed to Trabis. He is fixed it.
Optimize for memory using.
one in include/functions.php
and one in class/downloads
and he change 2 lines in index.php
You can download fix edition in my site follow link.http://ilkmatzum.com/modules/TDMDownloads_1.5_trabis_optimized.zip
we will waiting TDMDownloads new versions :) Thanks All