I am building a large website where members will be allowed to upload content (images, videos) up to 20MB of size (maybe a little less like 15MB, we haven't settled on a final upload limit yet but it will be somewhere between 10-25MB).

My question is, should I go with HTTP or FTP upload in this case. Bear in mind that 80-90% of uploads will be smaller size like cca 1-3MB but from time to time some members will also want to upload large files (10MB+).

Is HTTP uploading reliable enough for such large files or should I go with FTP? Is there a noticeable speed difference between HTTP and FTP while uploading files?

I am asking because I'm using Zend Framework which already has HTTP adapter for file uploads, in case I choose FTP I would have to write my own adapter for it.

Thanks!