Re: File Extensions

[greg@apple2.com]

In article <3863aa23.1096075@news>,
CUTblakeney@home.com (Jeff Blakeney) wrote:

> Pretty much all you should see being made available are BXY (binary)
> and BSQ (text) files.  Here is a fairly complete list of the common
> extensions used for Apple II archives:
>
>      BXY  NuFX archive (SHK or SDK) in a Binary II wrapper (BNY)
>      BSQ  NuFX archive (SHK, SDK or BXY) encoded as 7 bit ASCII (BSC)

Really just any compression scheme.  I think the Q is a historical nod 
to BLU.

>      BSC  A file encoded as 7 bit ASCII

Note that a file with a BSC extension should not be compressed (i.e. if 
it is compressed, the BSQ extension should be used instead).

>      SHK  NuFX compressed archive containing one or more files
>      SDK  NuFX compressed disk image
>      BNY  One or more files in a Binary II wrapper

Not compressed.

>      BQY  File(s) compressed with BLU in a Binary II wrapper (BNY)
>      QQ   A file compressed with BLU
>
> That's all I can think of off the top of my head.  I can't remember
> what extension DDDeluxe used.

In my experience, DDD.  This is also the format used by ProTERM when 
sending disk images.

But do we have any MIME types registered for these yet?  I'd like to 
know what MIME types a web server serving these files should employ to 
ensure they get transferred and saved properly (possibly handed off to 
an appropriate helper application for extraction).

> By the way, keep in mind that BSC and BSQ files will always be larger
> than the binary files they contain so I'd be much happier downloading
> the binary versions instead of the text ones and in fact that is
> exactly what I do when I have a choice.

Provided that the downloading client either knows the required transfer 
types for those files, or allows you to specify the transfer mode.  
Which is why getting registered MIME types for our archives (and getting 
sites to include the extensions for all files -- the METAL/Future Vision 
FTP site failed to ensure this) is important.

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