now i had time to investigate the problem. the thing is, that the exif-resolution is very often returned as a fraction number. the error in the script is, that this fraction isn't calculated, only the top value of the fraction was used, which resulted in a *very* big tmp file when executing the rescale method.
so this is just a user error. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]