Instruction on how to work with images and videos in the storage azure using php

Question

Dear Sirs

I followed below instruction to make video and image storage on Azure using PHP:

http://azure.microsoft.com/en-us/documentation/articles/storage-php-how-to-use-blobs/

Whenever I record an image on Azure storage and download stored image there is no format in the stored image. and end up becoming like any other regular file. Othe problem is that I cannot see the concerned image in the browser. I already have checked recipient access and it is defined as public reading. 

Could you also please provide me with an article instructing how to make upload,  download, show up on the browser and remove video and images from the azure storage area?

Thanks & Regards,
Pedro