I have been having a major clear-out of my PC software CDs - copying them to an external hard drive in case I should ever need them, then chucking the CDs.
Over a period of several years, it seems that, with my acute paranoia, I have made multiple copies of my XP installation CD. Some are marked 'bootable', others are marked 'non-bootable' - and some aren't marked either way.
I just want to keep the ones that are bootable (I have the XP image on the external hard drive just in case). The question is: I don't really want to power down my PC, and see if it will boot from each of these XP CDs if I can help it. So: is there any other way of determining whether a CD is bootable, short of actually trying to boot from it? (e.g. are there visible files on a bootable CD that aren't on a non-bootable one?)
An iso file is a continuous file whether bootable or not, that is why it needs to be mounted to a virtual drive or burnt to an optical disc, it has readable commands during installing or reading. Different to Zips etc.
Although I haven't tried MobaLiveCD, yet, it states quite clearly that it can test if an optical disc is bootable.
I would have thought that you'd be saving the cd/dvd's contents as .iso's to store them on your external hard drive as then all you need to do is burn the .iso back to a cd/dvd if you wanted to use again.
Yes, it would be easy to re-burn back to a CD/DVD.
An ISO image is simply a CD-ROM or DVD image saved in ISO-9660 format.
.iso files are images of complete CDs or DVDs compiled as one whole image file. Not only contains individual data files; it also contains track and sector information and arranges all this information in a file system, just like disk media. Image files, unlike normal files, are mounted before you can browse the contents.