> One can be certain and be wrong. > > So it does record some command line arguments.
One can be both. mkisofs used to record the command line it was invoked with in the iso image, but this was seen as a privacy issue, and changed about 2 years ago. I always record md5sums for each individual file on the CD/DVD itself; this helps a lot to pinpoint any problems to particular files. I also keep checksums of the complete iso image, these are faster to verify and check the whole filesystem, including the metadata and any unused blocks which are nevertheless part of the filesystem. Because the filesystem's creation date is recorded in the iso image, any such image accidentally deleted is non-recoverable and its corresponding checksums worthless. Act wisely :) Of course if such an image was previously burnt, it can be recovered from the burnt disk. I have scripts for all the above tasks. Volker -- Volker Kuhlmann is list0570 with the domain in header http://volker.dnsalias.net/ Please do not CC list postings to me. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]