On 10/06/2010, at 9:33 AM, Lloyd White wrote:

> Thanks Ronni,
> 
> I checked that site. The most interesting part for me was that with DVD+R
> you can burn a part of it and then come back later to burn more data on the
> unused part. That could be useful to me.
> 
> My local supplier could give me no such information!
> 
> Regards
> 
> Lloyd 
> 


Be careful with this, and take it under advisement. What this simply means is 
that that capability of multiple burning sessions is provided by the DVD+R 
protocols, but you are still dependent on the software you use to make that 
happen. For example, if you create a Burn Folder in the Finder, copy some items 
to it, and then burn that folder to a DVD+R disc, the 
disc WILL BE FINALISED. There is no way to tell Finder to burn in sessions.

On the other hand, if you create an editable Disk Image using Disk Utility, you 
do have an option to leave the image re-writeable once burnt the first time, 
but this is not a straightforward procedure. It requires some care. Bear in 
mind also that an unfinalised DVD may not be useable in other devices until it 
has been finalised.

By far the easiest way to deal with multi-sessions burns is to use software 
which is designed for the purpose, the best example of course being Roxio's 
Toast. There are other reasonable shareware titles available as well.

Just be aware that just because DVD+R allows the disc to be recorded multiple 
times, there is no guarantee that this will be the case following a standard 
burn session.


Peter Hinchliffe        Apwin Computer Services
FileMaker Pro Solutions Developer
Perth, Western Australia
Phone (618) 9332 6482    Mob 0403 064 948
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