Re: D9090 back to life !

From: Rob Eaglestone <robert.eaglestone_at_gmail.com>
Date: Tue, 28 Jan 2014 16:32:56 -0600
Message-ID: <CABNTyr92h9zJ8HVgQbK067hFm62i=nA0bW17jbfCZb5OyhY_rA@mail.gmail.com>
Ok, assuming that there are some number of hackers who are likely to do
something they don't understand, and who don't make backups, then there's
one more thought that Jim mentioned:

Well, since the block has a magic sequence, any block will work.
>

This goes for data tacked to the end of an image file, as well.  So we can
have our cake and eat it, too.




On Tue, Jan 28, 2014 at 4:27 PM, A. Fachat <afachat@gmx.de> wrote:

> I completely agree with Spiro. A disk image is an archive format and
> should not be modified from the original. I'd rather add something at the
> end instead.
>
> Broken BAM or Dir sectors due to overwritten data might wreak more havok
> with tools that do not know them than ignoring extra data at the end of file
>
> André
>
>
> Am 28. Januar 2014 20:47:42 schrieb Spiro Trikaliotis <
> ml-cbmhackers@trikaliotis.net>:
>
>
>  Hello,
>>
>> * On Tue, Jan 28, 2014 at 07:59:10AM +0100 Groepaz wrote:
>>
>> > the major problem with that approach is that it doesnt work on disks
>> that are completely filled with data (which isnt really unlikely, lots of
>> cracks and demos use the dirtrack for files, for example) - which rules it
>> out as a generic solution.
>>
>> I think another big advantage is that it modifies the data contents
>> themselves. This is something I personally do not want to have. For me,
>> one use of a disk image is to preserve data that was once on a real
>> disk. Here, changing the disk data that should be preserved is no
>> option.
>>
>> Also, someone suggested changing the BAM, because it can be rebuilt by
>> "V"alidate. No, I do not like this, because the BAM contains info, too.
>> There can be an error (accidentially or intentionally) that might serve
>> a purpose.
>>
>> Thus, please, DO NOT MODIFY THE DATA CONTENTS SOMEONE MIGHT WANT TO
>> PRESERVE.
>>
>> I do not like to have it optional, because people will not know about
>> these options, and they might accidentially use it.
>>
>> If people do not like a container format, another option might be to add
>> another file beside the original one. For example, have a file
>>
>>    MYSUPERDUPERDISK.d9060
>>
>> and a meta-file
>>
>>    MYSUPERDUPERDISK.d9060.meta
>>
>> (or, if you want to play with ADS on Windows, use
>> MYSUPERDUPERDISK.d9060:meta ;)
>>
>> Regards,
>> Spiro.
>>
>> --
>> Spiro R. Trikaliotis
>> http://www.trikaliotis.net/
>>
>>        Message was sent through the cbm-hackers mailing list
>>
>
>
>
>       Message was sent through the cbm-hackers mailing list
>


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Received on 2014-01-28 23:00:49

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