[Martijn]

Can you give me a full debug log when downloading images for those movies?

unfortunately I can't paste the whole log as it is 3MB big and pastebin only allows up to 500KB. I have included the offending parts though

http://pastebin.com/0YMwRmsk

I am also going to try and change the permissions on my files and retry to see if it helps.

Maybe something with the path splitting in the code. Can you add something to the media_setup.py code and test again?
add: print path
like example below to media_setup.py aournd line 138 and 145

PHP Code:

def media_path(path):
    # Check for stacked movies
    print path
    try:
        path = os.path.split(path)[0].rsplit(' , ', 1)[1]
    except:
        path = os.path.split(path)[0]
    # Fixes problems with rared movies
    if path.startswith("rar"):
        path = os.path.split(urllib.url2pathname(path.replace("rar://","")))[0]
    print path
    return path 


Upload the log to http://paste.ubuntu.com
The part from where Artwork Downloader starts is enough.
They have no file size limit.