PHP Warning: POST Content-Length of 21511297 bytes exceeds the limit of 8388608 bytes in Unknown on line 0

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I use win7+iis+zenphoto1.4.2.4
with class-video v1.4.2
and flowplayer3 v1.4.2
and hitcounter v1.4.2

Probably a too big file to upload. Try FTP directly.

You did not say when you get this error, probably a critical piece of information!

The error says that whatever is being posted is too big.

continue,
the video file size for about 25MB

but

I can load a 3gp video file for about 1.5MB successfuly

but,it can't play,even I inatalled quicktime player.

how is the size limit of zenphoto?

Zenphoto does not have a limit but your server has a upload limit (which has nothing to do with playing a file).

thank you very much.

this is my php.ini:

;;;;;;;;;;;;;;;;
; File Uploads ;
;;;;;;;;;;;;;;;;

; Whether to allow HTTP file uploads.
; http://php.net/file-uploads
file_uploads = On

; Temporary directory for HTTP uploaded files (will use system default if not
; specified).
; http://php.net/upload-tmp-dir
;upload_tmp_dir =

; Maximum allowed size for uploaded files.
; http://php.net/upload-max-filesize
upload_max_filesize = 50M

; Maximum number of files that can be uploaded via a single request
max_file_uploads = 20

;;;;;;;;;;;;;;;;;;

Probably your POST max size is too small. Anyway, try ftp instead as that bypasses every upload limit.