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Re: Disk strangeness

Is there a command that would show this?

I will see what I can do with the UDF info.

On Sat, Mar 13, 2021 at 11:18 PM Michael van Elst <> wrote:
> (Todd Gruhn) writes:
> >I have 2 different types of compact disks. One is a
> >CD-RW, the other is DVD-RW. I was able to initialize
> >the DVD-RW disks using 'cdrecord ... blank=fast'  followed
> >by 'newfs /dev/rcd0'
> Are you sure that it's CD-RW and DVD-RW ? These are rewritable
> disks, but you can only write them sequentially, and not with a
> random-access filesystem like FFS.
> A sequential filesystem like UDF on the other hand should work
> with either DVD-RW or CD-RW.
> DVD-RAM is a rewritable DVD that allows random access, but there
> is no CD-RAM. If your DVD-RW is actually a DVD-RAM, that would
> explain why newfs works for it.
> --
> --
>                                 Michael van Elst
> Internet:
>                                 "A potential Snark may lurk in every tree."

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