I have been using my cd-rw drive to back up data. the cd filled up today and
I would like to delete some of the files to create some space. When I try to
delete a file I'm told that it is a read only file and I can't delete it.
This happens on all of the files. I tried to format the CD and got the same
response.
I tried using a blank formatted cd and all works well. Any ideas as to what
is going on?

"Dick" <(E-Mail Removed)> wrote in message
news:cb-(E-Mail Removed)...
> I have been using my cd-rw drive to back up data. the cd filled up today
and
> I would like to delete some of the files to create some space. When I try
to
> delete a file I'm told that it is a read only file and I can't delete it.
> This happens on all of the files. I tried to format the CD and got the
same
> response.
> I tried using a blank formatted cd and all works well. Any ideas as to
what
> is going on?
>
>
>

a CDR can only be written to using a disc image or packet writing to
incrementally fill a CD.

a CDRW can be "reformatted" for either use again...

see here for a description of which you are using :>


http://en.wikipedia.org/wiki/Packet_writing

I'm using a CD-RW and UDF packeting.
I should be able to format, I am unable to do it. It comes up saying that
the CD is a read only disc. I have been adding and removing files on this
disc for quite some time. Sure is puzzling why I can't do it now.
"Haggis" <(E-Mail Removed)> wrote in message
news:Owy74b%(E-Mail Removed)...
>
> "Dick" <(E-Mail Removed)> wrote in message
> news:cb-(E-Mail Removed)...
>> I have been using my cd-rw drive to back up data. the cd filled up today
> and
>> I would like to delete some of the files to create some space. When I try
> to
>> delete a file I'm told that it is a read only file and I can't delete it.
>> This happens on all of the files. I tried to format the CD and got the
> same
>> response.
>> I tried using a blank formatted cd and all works well. Any ideas as to
> what
>> is going on?
>>
>>
>>
>
> a CDR can only be written to using a disc image or packet writing to
> incrementally fill a CD.
>
> a CDRW can be "reformatted" for either use again...
>
> see here for a description of which you are using :>
>
>
> http://en.wikipedia.org/wiki/Packet_writing
>
>

My guess is the outside of the cdrw is done. Can't write to it anymore.
That's where the TOC is, the table of where the files on the Cd are
contained.
--
Jonny
"Dick" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> I'm using a CD-RW and UDF packeting.
> I should be able to format, I am unable to do it. It comes up saying that
> the CD is a read only disc. I have been adding and removing files on this
> disc for quite some time. Sure is puzzling why I can't do it now.
> "Haggis" <(E-Mail Removed)> wrote in message
> news:Owy74b%(E-Mail Removed)...
>>
>> "Dick" <(E-Mail Removed)> wrote in message
>> news:cb-(E-Mail Removed)...
>>> I have been using my cd-rw drive to back up data. the cd filled up today
>> and
>>> I would like to delete some of the files to create some space. When I
>>> try
>> to
>>> delete a file I'm told that it is a read only file and I can't delete
>>> it.
>>> This happens on all of the files. I tried to format the CD and got the
>> same
>>> response.
>>> I tried using a blank formatted cd and all works well. Any ideas as to
>> what
>>> is going on?
>>>
>>>
>>>
>>
>> a CDR can only be written to using a disc image or packet writing to
>> incrementally fill a CD.
>>
>> a CDRW can be "reformatted" for either use again...
>>
>> see here for a description of which you are using :>
>>
>>
>> http://en.wikipedia.org/wiki/Packet_writing
>>
>>
>
>