When ripping your own games, you should get the files as they were stored on the GDRom. I think you get a text file.
Now, to order your file with mkisofs, you have to use a certain option : -sort sortfile.txt.
This is part mkisofs documentation about sorting files :
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Sort the order of files as they appear on the CD
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To use, type something like:
mkisofs -o cdimage.iso -sort sort_file [other_options] cd_dir
The file 'sort_file' contains two columns of:
filename weight
where filename is the whole name of a file/directory as mkisofs will see it and weight is a whole number between +/- 2147483647
The files will be sorted with the highest weights first and lowest last.
The default weight is zero.
If the filename is a directory name, then all the files in that directory (and sub-directories) will use its weight as their default weight.
e.g.
If the directory 'cd_dir' contains two directories called 'dir1' and 'dir2' with files 'A', 'B' and 'C' in dir1 and 'X', 'Y' and 'Z', the the file
'sort_file' could look something like:
cd_dir/dir2 1000
cd_dir/dir2/Y 2000
cd_dir/dir1/B -2000
cd_dir/dir1/A -8000
Note: There must be only one space or tab character between the filename and the weight and the weight must be the last characters on a line. The filename is taken to include all the characters up to, but not including the last space or tab character on a line. This is to allow for space characters to be in, or at the end of a filename.
The command:
mkisofs -o cdimage.iso -sort sort_file cd_dir
will sort the above files as:
cd_dir/dir2/Y
cd_dir/dir2/X
cd_dir/dir2/Z
cd_dir/dir1/C
cd_dir/dir1/B
cd_dir/dir1/A
Note: files 'X' and 'Z' both have the weight 1000 - their sort order will then be the normal ISO9660 sort order (i.e. alphabetical in this case).
File C will have the default weight of 0
Warning: the filenames in the sort list MUST match the whole path as seen by mkisofs. i.e. in the above case, if the command line was:
mkisofs -o cdimage.iso -sort sort_file ./cd_dir
then the sort_file filename will have to changed as accordingly.
Notes
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CDs are written from the middle outwards. High weighted files will be nearer the in side of the CD.
Wildcards in the filename list *may* work - I haven't tested this yet.
If a file appears more than once in the source directory tree, then the file is only added once to the CD image - i.e. a hard linked file, or symbolic link if using the -f option. The file will be sorted according to the highest weighting given to any of the linked files.
Zero length files are not sorted - the 'start extent' *may* appear to be in the middle of another file after sorting. This is because zero length files are given the start extent after the last file added to the CD at that time.
This address is not changed by the sorting, so it may appear that the file address is in another file - however as they are zero length, this will not matter!
Directories are not sorted by this flag - directories HAVE to be in the ISO9660 sort order - however, the files the directory entry points to, can be anywhere on the CD.
Existing files from any previous sessions will not be sorted - they already exist on the CD and can not be moved!
I have no idea if this is really useful ...
James Pearson 13-Apr-2000
Any comments/problems to
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