[oclug] Writing incremental backups to the same CDR(W)

[Raj]

On Fri, 21 Nov 2003, Phil Tanguay wrote:

> Hey guys,
> 
> I would like to be able to keep a CDR in my drive, and have a cron job drop a
> daily incremental backup on it, without having to swap CDs or master an ISO
> and all that jazz.  
> 
> I've been searching around, and the equivalent functionality in the Windows
> world is provided by Adaptec DirectCD...  I've read that the UDF module/driver
> will do the same kind of thing, but the latest docs mention that it won't work
> for CDs at this point (which makes me wonder about its usefulness at all, but
> that's besides the point.)
> 
> Anyways, any idea of how I could go about this ?  My deltas are probably
> 100Kbs, at the most, so the ability to keep the same disk in the drive for
> long stretches of time is pretty important for convenience.
> 
> 

you could use the -multi option on cdrecord.  That does have an overhead 
on space used, but it will do what you want.  
cheers!
--Raj.