> I find all of this moderately ridiculous. > > I've burned ISO's for 6-8 years on a variety of computers, linux, and > windows systems at various recording speeds without using the -pad > value recommended here, and I've never yet burned an ISO that turned > out to be unusable with the possible exception of bad media. > > As someone reported later in this thread, this probably has more to do > with certain flaky CD hardware and IDE chips than with any real > requirement. I would love to read a discussion of this problem by CD > writing gurus. > > If someone is having a problem with CentOS ISO's, perhaps this is > worth a try, but to state this as a universal truth seems to be beyond > the mark. ok, liteon cd/dvd burner 832S (8xR-/R+ with dual layer support), rather new fails to burn any CD image with size not % 32KB, so it needs 15 sectors (2KB) worth of padding to work - screwed up on CentOS4 CD1 and got a bad cd (didn't actually try media check, but cmp -l /dev/cdrom centos4-i386-cd1.iso ended with /dev/cdrom: IO Error) I don't think my lite-on 48248S has this problem, so yes, it is burner related - but - it is common. Cheers, MaZe.