Jochen,

No problems here.  My congratulations to all involved.  A great piece of
work!

As I know from experience, you can never be certain that every disk is going
to be readable by every drive. Even if you verify each disk after burning,
some read problems are almost inevitable. And the very act of printing on
the disks might introduce a miniscule rotational imbalance that makes the
disk borderline on certain makes of drive.

+R/-R shouldn't be an issue these days, but still, some drives are better at
reading one format than another.  My personal preference is +R.

Anyway, nice work.


Adrian
www.memorylanecomputing.com

> -----Original Message-----
> From: ql-users-bounces@list... [mailto:ql-users-bounces@lists.q-v-
> d.com] On Behalf Of Jochen Merz
> Sent: 18 September 2011 12:15
> To: ql-users@q-v-...
> Subject: Re: [Ql-Users] Huge Sinclair repository on DVD out now!


> Yes, especially with RWs ... I did some tests some years ago and most DVD-
> RWs were not readable on other systems, so I gave up on them.
> DVD-RAM were and are very reliable, and much more flexible.
>
> You may be right, but for non-rewritables, I thought that this + and -
issue
> should be history ... as all drives were able to read both for many years
now.
> It must be a VERY old system if it handles only one type of DVD.
>
> Jochen


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