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querying free space on a dvd-rw disk

Thanks, I think I found the command I was looking for, its 
dvd+rw-mediainfo combined with isoinfo. The first command gives you the 
size of the media, the second one tells you how much of it you have used.

Cheers. Steve.

On 01/22/2011 07:35 PM, John Abreau wrote:
> One thing to consider is that "official 4.7Gigs" actually means
> 4,700,000,000 bytes, which translates to 4.4 GB ("GiB" for the
> anally retentive).
> On Fri, Jan 21, 2011 at 2:34 PM, Stephen Adler<adler-wRvlPVLobi1/31tCrMuHxg at>  wrote:
>> Hi Blu'ers...
>> I'm writing some scripts to do backups of data for my job. Does anyone
>> know how to query a DVD-RW disk to find out how much free space is on
>> it? I guess one could mount it, get the used space and subtract that
>> from the official 4.7Gigs of DVD capacity, but it would be nice to be
>> able to do some kind of direct query.
>> Thanks in advance.
>> Cheers. Steve.
>> _______________________________________________
>> Discuss mailing list
>> Discuss-mNDKBlG2WHs at

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