[Ti] ILLEGAL REQUEST...INCOMPATIBLE FORMAT

[Dr Trevor J. Hutley]

On 24 Oct 2005, at 03:18, Mikael Byström wrote:

> Dr Trevor J. Hutley said:
>
>> I have burnt another 10 DVD (archives) since then, and each time
>> carefully kept the content at 4.2Gb or less, and have had no more
>> problems.
>> I agree with all of your analysis and conclusions, based on my total
>> experience these last few days, that it is a (small) issue with
>> Toast, with the resulting ungraceful handling and stack of errors.
>
> Only if another burn application doesn't have a problem with the same
> media. Have you tried Disk Utility for example? Just make a big disk
> image and fill it up to 4450MB (practical max for many drives) or  
> try more.
> Until you have tried another app it's just a theory.

Mikael - you sound like a scientist !

I agree that at the moment it is just a hypothesis, based on the data  
I have.  No proof as such.

If I had a DVD-RW, I could try the same burn with different  
applications, to isolate whether it is a media or application issue.

If I went back and tried again to burn the same content at 4.25 Gb,  
and I get the problem again, after 10 problem free burns, I think it  
points strongly to the Toast.

I would like to identify the problem specifically, so may carry out  
these 2 experiments, record the results in my Laboratory Notebook,  
and will report back.

regards,  Trevor (scientist)