Re: The big backup!

[rubywand@aol.com (RUBYWAND)]

In article <4posd4$3lf@terrazzo.lm.com>, mportune@telerama.lm.com (Matt
Portune) writes:

>
>>.... Except for folders, the file types were all shown as "Unknown".
>> According to FileManager, these were file type 00, auxtype 0000.
However,
>> the files could be copied to RAMDisk. It looks like your backup will
work
>> as long as you do not care about executing any files from the CD.
>
>Cool, since everything has been SHK-ed or SDK-ed.  ANother question... 
>normal ISO-9660 is limited to 8+3 character names, which really blows.  I

>have the option of using extended ISO (Joilet, I believe).  Has this ever

>been tested on a GS, or should I just stick with 8+3?  Also, the CD drive

>I have on the GS handles multisession, but does the GS itself handle it? 

>I'd like to add to this disc later.  THanks for the help!
>

     It is true that the History of the World CD-ROM does seem to intend
to follow the 8+3 convention. (Example: BOOKLIST.DAT;1 is a typical file
name as displayed via the System 6 Finder.)  Probably, this is because the
CD is supposed to be accessible on a PC under DiscPassage. 

     According to the Apple IIgs GS/OS Reference, you do not need to stick
with the 8+3 convention. The recommended conversion of ProDOS-to-ISO-9660
is ...

Folder names: letters in uppercase; replace all periods with underscores

Other file names: letters in uppercase; replace all periods with
underscores and add .;1 (period semi-colon one) to the end of the file
name. For example Narf.game1.TXT would become NARF_GAME1_TXT.;1 


     As described on page 300, the High Sierra and ISO-9660 are nearly
identical CD-ROM file formats. File identifiers for folders have just a
"name". Other files can have 3-part identifiers consisting of a Filename,
Extension, and Version number:

Filename can include uppercase letters, digits 0-9, and underscore. It can
have 0 or more characters. It is followed by a period.

Extension can include uppercase letters, digits 0-9, and underscore. It
can have 0 or more characters. It is followed by a semi-colon.

Version number includes 1-6 digits.


     ISO-9660 requires all three parts. The Filename + Extension must have
2 to 31 characters including the period. So, N.;1 and .N;1 are examples of
minimum size legal file identifiers.

For example NARF_GAME1.TXT;1 is a legal ISO-9660 file identifier. GAME1 is
the Filename, TXT is the Extension, and 1 is the version.

NARF_GAME1_TXT.;1 is preferred because it follows a simple rule which
(except for case of letters) allows easy conversion back to the original
ProDOS name.

     According to the manual, Apple's High Sierra FST (HS.FST) does not
support multi-volume sets on a single CD.


Rubywand