Re: CiderPress file name requirements

[Andy McFadden <fadden@fadden.com>]

Michael J. Mahon <mjmahon@aol.com> wrote:
> Tonight I tried to open some ShrinkIt archives that had a .txt
> suffix, but that were identical to the .shk version except for
> file name.
> 
> CiderPress wouldn't open them because they did not "appear to
> be valid archives".  This behavior persisted even when I selected
> "reduced error checking".
> 
> Why does CiderPress care about the file suffix, instead of just
> validating the header?  I guess I was expecting ShrinkIt-like
> behavior...


Try this: in the "file types to open" pop-up menu, select "ShrinkIt
archives".  That should tell it to assume the file is a ShrinkIt archive.

If you use the "all files (*.*)", it starts by assuming that it's a disk
image.  The "open disk image" function looks for (among other things)
a .SDK, and is expected to return "hey, this is a file archive" if it
finds a valid ShrinkIt archive that has more than just a single entry
of type "disk".  That in turn should inspire it to try to open the file
as a ShrinkIt archive.  Sounds like that's not happening.  I'll try to
figure out why later tonight or tomorrow.

Re: trouble opening ShrinkIt archives on read-only media.  You can
probably circumvent the problem by checking the "read only" checkbox, since
NufxLib won't need a temporary file in that circumstance.  CiderPress
*should* be retrying in read-only mode if opening read-write fails
(e.g. you set the read-only flag in file properties in Windows), but it's
possible CiderPress isn't properly handling the error code coming out
of NufxLib when what's failing is creation of a temporary file.  I'll check
that one too.

FWIW, "reduced error checking" relaxes some of the CRC tests.  Not
generally recommended, but necessary for some archives created with a
broken utility.

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