Rename image uploads with width in filename

I am attempting to change the name format that WordPress uses to rename uploaded files. For example, when I upload an image with filename cat-picture.jpg WordPress will create scaled versions and rename the filename to variations of cat-picture-{WIDTHxHEIGHT}.jpg. Is there a way I am able to move this width & height attribute to the beginning of the filename so instead I get variations of {WIDTHxHEIGHT}-cat-picture.jpg? So, in the context of this example, I’d like the filename to be renamed to 600x400-cat-picture.jpg. Thoughts?

How to save Uploaded image in custom option panel?

I’m trying to add a custom option panel to a new template following a tutorial found on NetTuts. I saved all the code for the option panel inside a file called optionpanel.php (LoL) and everything is working but now I would like to add an Upload/Image button so I’ll be able to change images inside a slideshow straight from WordPress Media Library instead of connecting via FTP each time.

wordpress upload http error?

I’m trying to uplaod video files,my upload file size limit is 96mb,and I can upload videos until 10mb size,but I want to uplaod videos that have 20mb size.If I try to uplaod bigger video I get http error,I found on web a lot of solutions but none of them acctualy help me.Is there any other solution how to fix http uplaod error and uplaod bigger files on my wordpress site?
I have tried every thing from there links :