On Tue, Jan 19, 2010 at 12:16:01PM +0100, Joerg Schilling wrote: > Daniel Carosone <d...@geek.com.au> wrote: > > > I also don't recommend files >1Gb in size for DVD media, due to > > iso9660 limitations. I haven't used UDF enough to say much about any > > limitations there. > > ISO-9660 supports files up to 8 TB.
However, some implementations have (or had?) limitations which meant that they couldn't read such disks. Some of those platforms even had problems (or required remembering arcane options and flags for "large file support") when copying these files back to hard disk. Linux was a prime culprit, though not the only one. I didn't use linux, but I never knew what might be at hand when needing to read disks for recovery, so I wanted them to be portable. I envisaged using multiple machines to read more disks in parallel, for example. It may not be as relevant for this use case, nor perhaps for more modern platforms, but it was a habit I developed earlier for other kinds of archives. I apologise, though, for misattributing this limitation to the filesystem spec. I misremembered the reason why I chose the limit. It was a practical limit, and the practicalities may well have changed since. > Do you have a bigger pool? I certainly don't have a bigger DVD media :-) (Yes, I know iso9660 also has multivolume support, but I'm similarly wary of being able to read it back on all platforms, since it's not encountered often, and there's no need when the source files can be split to better effect.) -- Dan.
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