Prepend to specified filenames not working

Question

i have the following script as a test for something i need to
do. i'm having a problem where the script is trying to use
the entire path and filename instead of just the filename.
what am i doing wrong?
the idea is to prepend a string to a filename if the file
is a .mov file. instead of naming the file to 200902_27_@_15-15-28___00001.mov,
the script is erroring and telling me it is trying to rename
the file to the entire filepath + 200902_27_@_15-15-28___001.mov.
thanks,
BabaG
set thename to "200902_27_@15-15-28"
set thefolder to "1400GBRaid-A:CanonHD:" & thename & ":PRIVATE:AVCHD:BDMV:STREAM:"
tell application "Finder" to (get every file of folder thefolder whose name extension is "mov") as alias list
repeat with AnItem in the result
tell application "Finder" to set name of file (thefolder) to thename & "__" & (AnItem as text)
end repeat
Message was edited by: BabaG
Message was edited by: BabaG

Answer 1

In your repeat loop, AnItem will be one of the items returned from your previous statement getting all of the files whose name extension is "mov". It is already the full file path and is in a form the Finder likes (alias), so all you need to do is deal with the name, for example:
tell application "Finder" to set name of AnItem to "__" & (get name of AnItem)