Works, just one problem, make disk images non read only

Question

I have a script that enables me to drop a file onto it and will ask for a text. It will copy the file and the text inside a new disk image.
However the created is read only, i would prefer it if i could edit it's contents.
The code is given below:
global variable1, selecto, diskName, tempfolder, thepathp, xx, pathp
on open {}
my openp()
end open
on openp()
set thepathp to path to desktop
set pathp to POSIX path of (path to desktop folder) as string
set variable1 to ""
tell application "Finder"
set selecto to selection as alias
set infor to info for selecto
set diskName to name of infor
set diskname1 to diskName as text
set john to count character of diskname1
set xx to characters -john through -5 of diskname1 as string
set tempfolder to make new folder at desktop with properties {name:xx}
set thepathp to thepathp & xx & ":" as string
my serialnumber()
duplicate selecto to tempfolder
my makeimage()
delete tempfolder
end tell
end openp
on serialnumber()
tell me to activate
display dialog "Enter the Serial Number:" default answer "" buttons {"Cancel", "Ok"} default button "Ok"
copy the result as list to {the log_message, the button_pressed}
if the button_pressed is not "Cancel" then
set fName2 to xx & ".txt"
set myFile to open for access file ((thepathp as string) & fName2) with write permission
write log_message & return to myFile starting at eof
close access myFile
end if
end serialnumber
on makeimage()
set selecto to thepathp
set pathp to quoted form of (pathp & xx & "s" & ".dmg")
set pselecto to quoted form of POSIX path of selecto as string
set variable1 to "hdiutil create -srcfolder " & pselecto & " " & pathp
do shell script variable1
end makeimage
Merry Christmas and happy new year.

Answer 1

Hi Richard!
Merry Christmas and Happy New Year to you too!
I don't know how much I can help but maybe you need to make a disk image first then convert it to get your results instead of creating the disk image in one step? In the "attach" function you have the possibility to select read/write. And interesting comments "about overriding the decision to make read only." (See man hdiutil under attach)
But this is just a thought...for what it's worth?
Reg